A [[Nijisanji]] [[virtual YouTuber]], part of the now-dissolved [[Nijisanji Gamers]] and designed by [[Kamioka Shun'ya]].

h4. Appearance
[tn]See post #3767315.[/tn]

She has [[red eyes]] and [[white hair|white]] [[pink hair]], worn in a [[ponytail|long]], [[low ponytail]] and tied with a red [[hair ribbon|ribbon]]. 

h5. Costumes
h6. Official costumes with a model
* [[Shiina Yuika (1st costume)|Default school uniform]]
* [[Shiina Yuika (2nd costume)|2nd costume]]: Games Day
* [[Shiina Yuika (3rd costume)|3rd costume]]: Miko
* [[Shiina Yuika (4th costume)|4th costume]]: Mahou Shoujo
* [[Shiina Yuika (5th costume)|5th costume]]: Maid
* [[Shiina Yuika (6th costume)|6th costume]]: Bikini
* [[Shiina Yuika (7th costume)|7th costume]]: Summer school uniform
* [[Shiina Yuika (8th costume)|8th costume]]: Military uniform
* [[Shiina Yuika (9th costume)|9th costume]]: Casual
* [[Shiina Yuika (10th costume)|10th costume]]: Summer casual

h6. Costumes shared with other members
* Nijisanji 4th Anniversary Fantasia idol outfit (post #5755771)
* NijiFes: Group Blue (post #6958117)

h4. Nijisanji units and groups
* [[Nijisanji Gamers]] - third batch (debut)
* [[Sasaki Saku|Saku]]Yui (casual)
* [[Lilly Crown (nijisanji)|]] (casual)

h4. External links
* YouTube channels: "solo":[https://www.youtube.com/@ShiinaYuika] and "duo with Sasaki Saku":[https://www.youtube.com/@sakuyui]
* "Twitter":[https://twitter.com/yuika_siina]
* "Nijisanji Unofficial Wiki article":[https://wikiwiki.jp/nijisanji/%E6%A4%8E%E5%90%8D%E5%94%AF%E8%8F%AF]
椎名唯華 しいなーと しぃしぃ