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Seffyna (세피나) is a Korean female Virtual YouTuber affiliated with NIJISANJI KR as the fifth generation alongside Ban Hada and Song Mia.

Introduction Video


【初配信】 안녕하세요! 세피나(セフィナ​)💗🌕 입니다

Seffyna's debut stream.


A fairy who likes to sing. Born from a flower, on the night of a full moon. Grew up in the hands of a witch. Came to this universe to conquer the human world.



On 23 April 2021, the names of the fifth generation of NIJISANJI KR members were revealed, as well as their Twitter accounts.[1] On 27 April 2021, it was announced that the members would hold their debut streams on 30 April 2021.[2] Seffyna was the first of the three to debut.


On 7 May, she released her first official cover song "KING" by Kanaria.

On 13 May, Seffyna celebrated her channel Monetization.[3]

On 17 May, Seffyna opened her channel membership feature.[4]

On May 19, for the first time, Sellyna collaborated with a member of NIJISANJI KR outside of her generation Han Chiho in "Untitled Goose Game."

On 21 July, Seffyna celebrated her 10,000 subscribers on her channel.[5]

On 2 August, Seffyna celebrated her birthday.[6]

On 7 August, Seffyna celebrated her 100 days since her debut.[7]

On 4 October, Seffyna celebrated her 20,000 subscribers on her channel.[8]

On 30 October, Seffyna celebrated her 6 months anniversary.[9]


On 1 January, Seffyna reached 30,000 subscibers on her YouTube channel.[10]

Fans and Mascot

  • Her fans are called "SeffyNite" (세피나이트, セフィナイト).


  • The ff in Seffyna derives from the music dynamic fortissimo, meaning "very loud."

External Links


Twitter hashtags

Further readings

Nijisanji KR logo (V T E)
1st Wave Min Suha (🌊)
Retired Yu Ruri (🎀🧸) · Wiffy (📶) · Shin Yuya (🌛🌱)
541 E&C Gaon (👔) · Han Chiho (🦋)
Retired Moarin (💕) · Kaen (🦴🔔) · Lorou (🎵) · Hakuren (☁️)
2nd Wave So Nagi (🌧) · Chae Ara (🌹💛) · Lee Siu (🐾)
3rd Wave Akira Ray (😸) · Lee Roha (🔰)
Retired Nun Bora (❄️💜)
4th Wave Yang Nari (📌) · Ryu Hari (👁‍🗨) · Shin Kiru (🌫) · Oh Jiyu (⚜️)
5th Wave Seffyna (💗🌕) · Ban Hada (🏴‍☠️) · Song Mia (🍡)
6th Wave Ko Yami (🐈‍⬛🔪) · Ha Yun (🎮 🦭🍔) · Na Sera (🌸🌙) · Lee On (🍰)


  1. NIJISANJI KR [@NIJISANJI_KR]. (2021, April 23). 【니지산지 신규 라이버 데뷔】 신규 라이버의 이름, 어카운트를 공개합니다! [Tweet]. Twitter.
  2. NIJISANJI KR [@NIJISANJI_KR]. (2021, April 27). 🎉니지산지 신규 라이버 데뷔 일정🎉 신규 라이버의 데뷔 일정을 공개합니다! 🗓️2021년 4월 30일 (금) 20:00~ 세피나 : @Seffyna2434 20:30~ 반하다 : @BanHada2434 21:00~ 송미아 : @SongMia2434 여러분들의 많은 응원과 관심 부탁드립니다💘#니지산지 #NIJISANJI_KR [Tweet]. Twitter.
  3. Seffyna [@Seffyna2434]. (2021, May 17). 【収益化記念】ありがとうございます!/수익화Party popper 감사합니다! Alarm clock5/13 (KST)20:00~ 여러분들 덕분이에요 와 너무신나Loudly crying faceLoudly crying face 皆さんのおかげです!やったぜ~ [Tweet]. Twitter.
  4. Seffyna [@Seffyna2434]. (2021, May 17). 【メンバーシップ記念】やったぜ~/멤버쉽 오픈! 今日の19:00から短い配信あるよ!Growing heart 오늘 19:00부터 짧은 뱅송 있음!Growing heart [Tweet]. Twitter.
  5. Seffyna [@Seffyna2434]. (2021, May 17). 【登録者1万人記念】ありがとうございます!!!/ 정말 감사합니다!!!【NIJISANJI KR | セフィナ】 Alarm clock7/21(KST/JST) 20:00~ 1万を記念して!なんか作ります!本当にありがとう!!!!! [Tweet]. Twitter.
  6. Seffyna [세피나 / Seffyna 【NIJISANJI KR】]. (2021, October 4). 【お誕生日記念】おぎゃあ / 응애 【NIJISANJI KR | セフィナ】 #2021HBD_Seffyna [Video]. YouTube.
  7. Seffyna [세피나 / Seffyna 【NIJISANJI KR】]. (2021, August 7). 【100日記念!】 雑談しながらKRの5期生描くよ! / KR5기생 그리기 【NIJISANJI KR | セフィナ】 [Video]. YouTube.
  8. Seffyna [세피나 / Seffyna 【NIJISANJI KR】]. (2021, October 4). 【登録者2万人記念 / 歌枠】 ありがとうございます💗/ Singing~! 【NIJISANJI KR | セフィナ】 [Video]. YouTube.
  9. Seffyna [세피나 / Seffyna 【NIJISANJI KR】]. (2021, October 30). 【半年記念】デビューしてから6ヶ月になりました!ありがとうございます!!!/ 벌써 6개월이라니!감사합니다!【NIJISANJI KR | セフィナ】 [Video]. YouTube.
  10. Seffyna [@Seffyna2434]. (2022, January 1). TAHNK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU [Tweet]. Twitter.