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Kaisei (魁星) is a male Japanese Virtual YouTuber affiliated with NIJISANJI, debuting as part of the unit "3SKM" (スリーエスケーエム) alongside Kitami Yusei and Sakaki Ness.
Introduction Video[]
【初配信】いらっしゃい。鍵屋『魁星』にようこそ。【魁星-Kaisei-にじさんじ】
Kaisei's introduction.
Profile[]
A young man who runs a 'locksmith shop' quietly in a dark alley.
From opening to closing anything, there is nothing he cannot handle.
While always looking aloof, no one can actually fathom his true intentions.[3]
Personality[]
Contrary to his shady appearance, he surprisingly speaks with a soft accent that's a mix of Kyushu and Kansai. A few livers have mentioned that he has a pleasant voice. At times, he can be quite passionate, often doing anime scene imitations or parodies during his streams. While it’s a rare sight, his groupmates find him unexpectedly funny when he loses his cool or gets flustered.
Appearance[]
He has navy blue hair with a ponytail and braid with pink streaks in his bangs with purple tinted glasses and red eyes with black slit pupils and yellow rings around his iris. He has multiple black piercings together with gold necklaces.
In his second outfit, his long hair was tied up in a high ponytail. He wore an oversized white shirt featuring the 3SKM logo, matching with his groupmate, layered over a black long-sleeved turtleneck that concealed his snake tattoo. Over that, he had on a gray half-vest, and a baggy green-and-white jacket was tied around his waist. A dog tag necklace completed the look.
History[]
Background[]
Kaisei's YouTube channel was created on 10 January 2024, and his Twitter account was created in February 2024. His first Tweet was made on 12 March, 2024. In addition to the members' individual channels and accounts, the unit debuted with their own official YouTube channel and Twitter account. The 3SKM's YouTube channel was created on 3 February 2024, and the unit's Twitter account was created in on the same month.
Debut[]
3SKM started their activities on 12 March, 2024 and would hold their first stream on 15 March, 2024.[1][2]
Along with the debut streams, they also released their first original song "DIGGY DIGGY". This song was written by Kokubo Yuuki.
2024[]
On 15 March, he reached 50,000 subscriber on his YouTube channel.
On 18 March, he reached 100,000 subscriber on his YouTube channel.
On 12 April he opened his membership.
On 15 April, he reached 150,000 subscriber on his YouTube channel.
On 26 May, The Official 3SKM LINE Stamp was released.
On 25 July, he reached 200,000 subscriber on his YouTube channel.
On 7 September, he had his first new outfit reveal.
On 12 September, 3SKM released a new original song "What's Up" composed by NA.ZU.NA to celebrate their half anniversary.
On 4 December, he had a 3.0 brush up stream for his VTuber model.
2025[]
On 7 January, he reached 250,000 subscriber on his YouTube channel.
On 21 - 23 February, he participated in Nijisanji Fes 2025.
On 12 March, he celebrated his 1st anniversary on stream together with his groupmate at 3SKM official account.
On 15 March, 3SKM released new original song "Naked" composed by NA.ZU.NA.
Discography[]
- Main page: Kaisei/Discography
| DIGGY DIGGY | as 3SKM | 15 March 2024 |
|---|---|---|
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| External links | ||
| Digital Release • Music Video | ||
Events[]
Fans[]
Relationships[]
3SKM Logo Design
- "3SKM" (スリーエスケーエム) - Kaisei, Kitami Yusei, and Sakaki Ness. They are debut-mates.
- "Morning at 29:00" (29時のモーニンぐー) - Kaisei, Nanase Suzuna, Oliver Evans and Kuramochi Meruto. (Group during Nijisanji Ikamatsuri Splatoon tournament.)
- (Unofficial) "Mabudabuchi" (まぶだぶち) (仮) - Milan and Kaisei. They are acclaimed childhood friends.
- Their name was decided on an Animal Crossing New Horizons stream, where Kaisei helped Milan adjust his mic settings for 3 hours. It is derived from "まぶだち", meaning true or close friend. They originally disliked the name itself, so they added (仮), but everyone around them used it anyway, so they have stuck to the name.
- Memerjong (ミーマージャン) - Oliver Evans, Sakayori Soma, Saiki Ittetsu, Kaisei. (The group was made when they collabed to play Mahjong Soul.)
- 3HBC - Hibachi Mana, Sakaki Ness, Kitami Yusei, Kaisei.
- 3AKG - Akagi Wen, Sakaki Ness, Kitami Yusei, Kaisei.
- Inside leg Manatee (股下マナティ) - Inui Toko, Machita Chima, Usami Rito, Kaisei.
- They first collab during Chained Together and the name was unofficially made during Gartic Phone collab.
Trivia[]
Identity[]
- Occupation: Locksmith
- Color: #0C6F72[4]
Miscellaneous[]
- Kaisei shares his character designer with Hizaki Gamma of HOLOSTARS.
- His fan name cleverly combines the kanji 錠 (meaning "lock") and 連 (meaning "group" or "association"), reflecting his lore as a locksmith who operates quietly in a dark alley. It is a play on word for "regular customer" which normally written as 常連 (jouren).
Character and lore[]
- He took over the locksmith business, 'Kaisei,' from his grandfather.
- In his lore video, he had a small square box that he never succeed to open.
- In Naked's mv, it is hinted that he might be cursed.
Live Chat Etiquette[]
- Common VTuber chat etiquette is summarised here: "VTuber Chat Etiquette"
External Links[]
Media[]
- Kaisei's corporate profile on NIJISANJI website
- 魁星 / Kaisei【にじさんじ】 - YouTube Channel
- @Kaisei_2434 - Twitter Account
- 3SKM - 3SKM YouTube Channel
- @3SKM_INFO - 3SKM Twitter Account
- @3skm.info - 3SKM Instagram Account
Hashtags[]
- 魁星 - General tag
- #魁星開店 - Livestream tag
- #かいせ絵 - Fan Art tag
- #魁星のキーホルダー - Fan Art for Accessory Tag
- #魁星これ開けて - Egosurfing tag
- #裏路地魁星 - NSFW tag
- #魁星ボイス - Voice Pack Impression tag
Further Reading[]
- 魁星 - Unofficial NIJISANJI Wiki
References[]
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