Kageyama Shien

Kageyama Shien (影山シエン) is a male Japanese Virtual YouTuber endorsed by hololive's branch HOLOSTARS. He is a member of its third generation alongside Aragami Oga, which was previously known as "TriNero" (トライネロ) prior to Tsukishita Kaoru's retirement. Shien and Oga then became known as "MaFia" (魔フィア).

Profile
Revision = Original =

Personality
Shien is a jackal that sometimes can be quite dumb and naive, baby-like, even. Former TriNero member Tsukishita Kaoru described him as a man that misuses his handsome voice, and "if a bat maker gave him the world's best baseball bat, he'd use it for soccer". Additionally, Aragami Oga, another member of TriNero, states that despite him being a mafia boss, he can't do anything without his subordinates. He further states that despite having good ears, he doesn't seem to listen to anyone.

Background
His Twitter account was created in 10 April 2020; he made his first tweet on 27 April, his YouTube channel was created on 8 April, and his debut stream was performed on 30 April.

2020
Shortly after his debut, his Twitter account was suspended because of his birth year being set to 2020. On 2 June, the Twitter suspension was lifted.

On 16 August, he released a cover of Fire◎Flower by halyosy, in which he sang with Rikka, Kanade Izuru and Astel Leda, making it his first cover song.

On 27 September, he released his first solo cover song, KING by Kanaria.

On 25 December, it was announced that all the HOLOSTARS members would receive new costumes on 3 January, 2021, commemorating New Year's.

2021
On January 3, he revealed his new year's costume, which was modelled by Klaeia.

On 9 January, he opened his membership feature.

On March 20, Shien reached 100,000 subscribers, being the third HOLOSTARS member to reach this milestone.

On 7 July, Shien announced during a stream that he would receive his 3D model.

On 10 July, Shien debuted his 3D model.

On 13 July, hololive's Japanese Twitter account announced that every HOLOSTARS member would get 2.0 version of their 2D model.

On 6 August, hololive's Japanese Twitter announced that Shien and Oga would receive "Summer" costumes.

On 10 August, Shien debuted his Summer costume.

2022
On 21 July, Shien reached 200,000 subscribers, being the fourth HOLOSTARS member to reach this milestone.

On 30 August, HOLOSTARS revealed an original voice drama titled, "Highschool Holography" to include all of the nine HOLOSTARS members along with featuring all four UPROAR!! members as guests. The drama cd will be released into two parts with the first part to release on November 5, 2022 and the second part to be announced at a later date.

On 21 September, it was announced that in celebration of the upcoming HOLOSTARS 2nd ACT 3D live concert, 3 new original unit songs would be released.

On 30 November, he revealed his autumn/winter outfit which was designed by his original illustrator Namakawa and rigged by Naname.

2023
On 24 January, Polaporiposupo, Bandai Namco's new mixed voiced media project had begun revealing voice actors with Rikka and Kageyama Shien being a part of the lineup for the roles of the characters. Rikka will be voicing the character SO from the group WAKAZO and Shien will be voicing the character Itsuki from the group chirpxchirp.

Discography

 * ''Main page: Kageyama Shien/Discography

2020

 * On 2 August, Shien entered Shibuya Hal's VTuber Apex Legends Tournament alongside Hanasaki Miyabi and Rikka under their group name "Star☆Sweeper". In the final rankings, they ranked 20th place.
 * On 10 October, Shien was a part of Waku Waku! VTuber Hiroba Online Vol. 2 (わくわく！VTuberひろば おんらいん Vol.2) along with Aragami Oga, Syukusei Batumaru and Boyacky from Yatterman Channel. Fellow HOLOSTARS member Rikka and, as well as Nanase Taku, Akiyama Rentarou from Himashokudo and Hanagasa Ilya were also part of the event.
 * On 26 October, it was announced that HOLOSTARS goods would be sold at Animate Girls Festival Aozora Marche, held on November 7-8, 2020, and on 28 October, 2020, it was announced that HOLOSTARS would be participating in the event as guests. Shien is part of the "Virtual Clerk" (バーチャル店員) exhibition, the "Anibako" (アニバコ) program and the "Chatting Fes" (おしゃべりフェス) exhibition in the event.

2021

 * On 28 January, it was announced that "Net Talking Festival", an HOLOSTARS exclusive event, will be held on 14 February where fans can have a one-on-one chat with any of the HOLOSTARS members for 3 minutes, talking about their daily feelings of gratitude to an important person.
 * From 25 until 27 June, all HOLOSTARS members participated in their 2nd anniversary event "Our Rally 2021", the event featured 3 HOLOSTARS in each day of the event, Shien participated on the 3rd day. On the final day of the event, an original song Just Follow Stars was released on the official HOLOSTARS channel featuring all members singing.
 * On 22 July 2021, Shien participated on the Fall Guys tournament VTuber Fall Guys Sports Day with fellow HOLOSTARS members; Hanasaki Miyabi, Arurandeisu and Aragami Oga as "Crustacean LobStars". In the final rankings, they ranked 1st place.
 * On 18 August, Molly Online which is a crane game had announced a collaboration with HOLOSTARS featuring members; Hanasaki Miyabi, Kishido Temma, Yukoku Roberu and Kageyama Shien. The goods would be available for a limited time.
 * On 28 August, Penguin Parade announced a collaboration with HOLOSTARS.
 * On 15 October, HOLOSTARS' Twitter account announced that HOLOSTARS would participate in "Animate Girls Festival 2021."
 * On 1 November, it was announced there will be a collaboration between King of Prism and HOLOSTARS for a limited time.
 * On 26 December, Shien, along with the rest of the HOLOSTARS members, performed at their first 3D live, HOLOSTARS 1st ACT: JOURNEY to FIND STARS.

2022

 * On 1 February, it was announced there would be a collaboration between HOLOSTARS and CONVERSE TOKYO starting February 4th until February 13th.
 * On 17 March, it was announced there would be a collaboration between HOLOSTARS and FamilyMart.
 * On 4 April, it was announced HOLOSTARS and UPROAR!! will be having a meet and talk event on May 22, 2022 held in Ikebukuro harevutai with a time limit of 2 minutes per person and attendance will be determined by lottery.
 * On 24 April, HOLOSTARS announced an event HOLOSTARS 3RISE SUPER FAN MEETING ～FLAGSHIP～ in celebration of it's 3rd anniversary to be held on June 26, 2022 in the venue of Ikebukuro harevutai.
 * On 25 April, it was announced there would be collaboration between HOLOSTARS and Don Quijote starting on May 3, 2022.
 * On 26 June, multiple announcements were made; collaboration with Bandai Gashapon starting on June 27, 2022 to July 24, 2022, HOLOSTARS' 3rd original song "Find It" was revealed and released on midnight of June 27, 2022 , HOLOSTARS' 1st album "Follow Us" goes on sale on August 31, 2022 along with the blu-ray of their first 3D live concert "HOLOSTARS 1st ACT: JOURNEY to FIND STARS" and a second 3D live concert "HOLOSTARS 2nd Act: GREAT VOYAGE to UNIVERSE" to be held on October 20, 2022.
 * On 1 July, HOLOSTARS announced they will be taking part in "Animate Girls Festival 2022".
 * On 26 July, it was announced that in collaboration between Phantasy Star Online 2 and hololive production, players who login during the campaign starting on August 24, 2022 will get stickers plus have a chance to get the outfits, accessories and voices of the following talents; Shirakami Fubuki from hololive, Ninomae Ina'nis from hololive English and Kageyama Shien from HOLOSTARS.
 * Shien has over 5000 hours logged into the game and explained in a zatsudan stream that he was very happy for the opportunity.
 * This also marks Shien as the first male vtuber to have his voice and accessories implemented into the game.
 * On 27 July, it was announced that HOLOSTARS and UPROAR!! will be participating as ambassadors in support of the spicy foods event, Gekikara Yabai, to be held in Akihabara starting on August 3rd, 2022. Event merch will also be available but only locally.
 * On 1 September, DAM, one of Japan's notable karaoke system, announced a collaboration with HOLOSTARS for a limited time through the entire month of September with a possibility to win prizes. On the same day, a video was uploaded to their official Youtube channel featuring Hanasaki Miyabi, Arurandeisu and Aragami Oga making an announcement regarding the collaboration.
 * On 3 September, it was announced that HOLOSTARS will be a guest of NTV, Nippon Television Network, on their program for the 15th episode of "PROJECT V" that focuses on VTubers featuring HOLOSTARS members; Kanade Izuru, Rikka, Yukoku Roberu, Kageyama Shien and Aragami Oga which will be broadcasted on September 29 at 24:59 JST.
 * On 3 October, it was announced that HOLOSTARS members will appear on the Nihon Television Vtuber NEWS program for 10 weeks to report the latest vtuber news. The broadcast will be on the Nihon Television channel program "news every" at 16:00JST on Mondays.
 * On 20 October, after the performance of HOLOSTARS 2nd Act: GREAT VOYAGE to UNIVERSE, multiple announcements where made. A blu-ray of HOLOSTARS 2nd Act will be released on Feburary 22, 2023 and depending on which store the blu-ray is ordered from, exclusive bonus items will differ. HOLOSTARS will have an apparel collaboration with KANGOL REWARD and the first designs will be for UPROAR!! meanwhile other designs will be revealed at a later date. For a limited time, HOLOSTARS 2nd ACT: GREAT VOYAGE to UNIVERSE will be distributed through MiruHaco by JOYSOUND starting on November 19th with more information to be announced on November 4th. All four members of UPROAR!! will be getting their 3D models with more details to be announced later. Arurandeisu will be having a new appearance with more details coming soon. Lastly, a new project has been announced with more details on a later another date.
 * On 28 November, hololive Production announced that HOLOSTARS will have a Christmas 2022 campaign which will include the following events to take place; a web advent calendar, a collaboration with Cake.jp which is an online cake delivery service to feature 13 original cakes for HOLOSTARS and UPROAR!! members, Christmas voice packs and more.

2023

 * On 18 January, Taito Online Crane announced a collaboration with HOLOSTARS featuring members; Yukoku Roberu and Kageyama Shien starting on January 21, 2023 at 20:00JST. The following illustrated goods will include two kinds of acrylic stands, long cushions and big towels. It was also notated that there will be a livestream on the same day at 19:00JST on Roberu's channel before the goods go live.

Mascot and Fans

 * Shien's mascot is a cat named "Nekoyama Shien" (猫山シエン), which was drawn by Aragami Oga.
 * Shien also has two minions, "Koyama" (小山) and "Nakayama" (中山).
 * His fanbase is officially called "Shiengumi" (シエン組), although he usually calls his fans his "subordinates" (部下たち).
 * After Shien says his opening greeting (お前たち，任務開始だ！), fans reply with "yes boss!" (イエスボス！).
 * When Shien ends the stream, fans say farewell by saying "good luck!" (グッドラック！).

Relationships

 * Units and groups aside from TriNero and MaFia he is part of are:
 * "Star☆Sweeper" (スター☆スウィーパー), along with Hanasaki Miyabi and Rikka.
 * "Babudon" (ばぶどん), along with Yukoku Roberu.
 * "Babumagadokide" (ばぶ魔ヶ刻で), along with Aragami Oga and Yukoku Roberu.
 * "Shadowgear" (シャドウギア), along with Rikka.
 * "TsukiKageRiTem" (月影律天), along with Tsukishita Kaoru, Rikka and Kishido Temma.
 * "Entenka" (円天家​), along with Kishido Temma.
 * "Shikaku" (シカく), along with Kazami Kuku and Hanayura Kanon.
 * "Koukakidou Lobstars" (甲殻奇動ロブスターズ), along with Hanasaki Miyabi, Arurandeisu and Aragami Oga.

Trivia

 * He likes anmitsu, as well as omurice.
 * He dislikes oysters.
 * His favorite animal is the kuroshiba.
 * He confirmed having two younger brothers and helped his mom watch them grow up since they were babies.
 * In the process of creating TriNero's Twitter accounts, they were cautioned seriously by Daidou Shinove, HOLOSTARS' manager, and mentioned that they had to be careful with the birthday settings, as your account would get locked if you were underage. Aragami Oga joked that because they debut in 2020, that would also be their birth year, which may have caused Shien to set 2020 as his birth year, thus causing his Twitter suspension.
 * Shien's Twitter suspension has caused jokes between fans, saying that he was baby, as if he was born in 2020. Notable examples of the joke was when Shirakami Fubuki drew Shien as a baby, Aragami Oga displaying Shien with a pacifier in his mouth, as well as calling him a "babbling baby" in his debut stream, and Tsukishita Kaoru making Shien's drink a baby bottle in the first TriNero collab.
 * Along with that, because his Twitter was suspended, he couldn't set up his official fan mark, but the official HOLOSTARS Twitter confirmed that "🟣", a purple circle, was his fan mark, shown in schedules. However, fans used "🍼", a baby bottle, as an unofficial fan mark as part of the joke.
 * Ironically, he is lactose intolerant.
 * Fans have stated how Shien's voice is very similar to that of voice actor Takahiro Sakurai's. Shien has even done some impressions of characters Sakurai has voiced, for example, Lucio from Granblue Fantasy.
 * His fetish is asses without thigh gaps, as when the legs are closed, it jiggles due to the "fleshiness".
 * One of Shien's running gags is him using an echo filter on his mic, often at abrupt times.
 * He shares the same character designer with Shirayuki Tomoe from Nijisanji.
 * Because of this, he calls Tomoe "Ane-san" (姐さん).
 * He owns a toy sword called DX Kageyama Blade (DX影山刀) that comes with various voice lines, voiced by himself. Some of the voice lines include his stream greeting and ending lines as well as original special attack names.
 * Sometimes new viewers mistake him as a dog, cat or even a skunk.
 * During his birthday stream, he revealed that when he hit around 20 years old, he went drinking without knowing his alcohol tolerance. He merrily went to an izakaya, had six cocktails of Kahlua Milk and vomitted so much he puked blood soon after, causing the realization that he can't drink, only able to do so moderately.
 * In Shien's one year anniversary stream, he mentioned that within just one year they lost 3 out of 12 HOLOSTARS members. Even though it's just currently the 9 of them, they're all working very hard. Further stating that from time to time, he'll see comments asking for a 4th generation already and understanding that people are hyped for new things. However, Shien noted that they aren't some gacha pulls but real people with feelings. To be clear, he is not against new members but ask that everyone support the current 9 members that are here now.
 * Rikka had also stopped by the stream and commented that in their hearts they are always 12 members and Shien agreed cementing the statement to be true as they'll never forget.
 * In a Minecraft stream while talking to viewers, Miyabi revealed that Shien doesn't act any different indicating his personality is the same whether when streaming or not streaming.
 * Shien said in a stream that during an off collab where everyone met and went out to eat, they were having serious talks regarding how HOLOSTARS would be moving forward in the future. Izuru, who was seating near him and after hearing Izuru's heartful response, it moved him so he ended up giving Izuru a head pat.
 * Shien brought it up again in a different stream collab with Izuru where he noted for having gave Izuru head pats because he couldn't help himself since Izuru was so cute in his response.
 * Shien had revealed for the 1st time that while not fluent, he is able to speak and read Korean. He has notated that if Korean is being typed in chat, he is usually aware of what is being said.
 * Fans were aware before that Shien probably knew some Korean as he was able to pronounce names when thanking for superchats. In the beginning it was only a speculation but now proven true directly from Shien.
 * Shien narrated the promotion video for the third volume of the light novel, "Kuro Shiro no Yuusha" (黒白の勇者) written by Junki Hiyama and illustrated by Eito Shimotsuki.

Media

 * Shien Ch.影山シエン - YouTube channel
 * Kageyama Shien's corporate profile on holostars.hololivepro.com (English)
 * Kageyama Shien's corporate profile on holostars.hololivepro.com (Japanese)
 * Kageyama Shien's corporate profile on hololive.tv (English)
 * Kageyama Shien's corporate profile on hololive.tv (Japanese)
 * @kageyamashien - Twitter account
 * @kageyamashien - TwitCasting channel

Twitter hashtags

 * #影山シエン - General
 * #エンエアー - Stream talk
 * #シエン組 - Fans
 * #シ絵ン - Fan art
 * #シ絵ッン - Fan art (NSFW)
 * #お試シエン - Video clips
 * #耳エン - Commentary on released voice dramas
 * #影メイク - Cosplay and handicrafts

Further readings

 * 影山シエン - Nicovideo Encycopedia
 * 影山シエン - Pixiv Encyclopedia
 * 影山シエン - Unofficial holostars seesaawiki
 * 影山紫炎 - Moegirl Encyclopedia
 * Kageyama Shien - Hololive Fan Wiki