Rikka is a Holoroid, an android created for Holostars. As he loves to learn new things, he absorbs all sorts of information from databases and the Internet. He is also interested in human beings, which is why he started streaming, even though sometimes he suddenly bugs out and becomes awkward. He says that he is equipped with high-performance AI, but despite that, he has 2GB of memory, making him prone to forgetfulness, and even has been described as an airhead by fans and fellow Holostars members.
His Twitter account was created in 18 September 18 2019; his YouTube channel was created on the same day, and his debut stream was performed on 20 October.
On 18 June, it was announced on Rikka's stream that he will get his 3D model. His 3D stream was performed on 21 June. During the 3D stream, he performed his first original song, Re:Hello World. Its music video was premiered on 28 June. The song then became available on iTunes on 5 September and became available on other various streaming services on 8 September.
On 3 September, he opened his membership feature.
- His fanbase is officially called "Tuner" (調りつ師).
- Units and groups he is part of are:
- "RIZnote" along with Kanade Izuru.
- "Matsurikka" (まつりっか) along with Natsuiro Matsuri.
- "Re:NoiSe" along with Natsuiro Matsuri, Yukoku Roberu and Shirakami Fubuki.
- "Natsumatsurikkai" (ナツまつりっかい) along with Natsuiro Matsuri, Kuroki Natsume and Mayuzumi Kai.
- "Star☆Sweeper" (スター☆スウィーパー), along with Hanasaki Miyabi and Kageyama Shien.
- He shares the same illustrator as Kagami Hayato from Nijisanji.
- He is the first Holostars member to get a 3D model.
- Rikka ch.律可 - YouTube channel
- Rikka's corporate profile on hololive.tv (English)
- Rikka's corporate profile on hololive.tv (Japanese)
- @rikkaroid - Rikka's official Twitter account
- 律可Official - Rikka's official bilibili channel
- @rikkaroid - Rikka's official TwitCasting channel
- ↑ Rikka's corporate profile on the hololive website
- ↑ Rikka [Rikka ch.律可]【記念枠】重大発表&３万人記念枠！！！！！！(2020, June 18)【律可/ホロスターズ】[Video File] Retrieved from https://youtu.be/ngp51EEwSyQ?t=2369
- ↑ Rikka [Rikka ch.律可] (2020, June 21) 【#律可3D】３Dお披露目ライブ！一緒に盛り上がろう！！【ホロスターズ/律可】[Video File] Retrieved from https://youtu.be/OJWVFa-2ggY
- ↑ rikkaroid (2020, September 5) ✨オリジナル曲全国配信のお知らせ✨ 9/8(火)0時〜 『Re:Hello world』が各種音楽プラットフォームにて配信決定しました！！ 5日0時〜iTunesで予約できます！！ ※今はiTunesしかリンクがありません。今後追加していきます ▼リンク先▼ https://rikka.streamlink.to/ReHelloworld 是非ダウンロードして聴いてね！ [Tweet] Retrieved from: https://twitter.com/rikkaroid/status/1302185197115383808
- ↑ Rikka [Rikka ch.律可] (2020, September 3) 【記念枠】メンバーシップ解禁だってばよ！！！【律可/ホロスターズ】 [Video File] Retrieved from: https://youtu.be/WGSCyJR9kQs