Rinu or Riinu-kun (莉犬くん) is a young utaite who started in 2016 with his first solo cover being "Net-game Haijin Sprechchor" , although he had previously done some duet covers with youika in 2015.
He has a cute and girlish tenor voice, much like a kid's, and can be misheard as a female. However, as heard in his cover of "Inokori Sensei" , he can sing in a lower tone as well. Rinu often uses autotune in his covers, making his voice a bit unclear; but in his cover of "Donor Song" , he was able to clearly sing several high notes. He is also a fan of adding small speaking parts into his covers, such as in his cover of "|||Toluthin Antenna|||" .
It was revealed on September 2nd, 2017 that Rinu is FTM transgender, and has suffered large amounts of dysphoria in regards to this. He has ultimately decided he has GID and that he is a man.
His most popular song as of May 28, 2018 is his cover of "Onegai Darling" with more than 4 million views on YouTube.
Other than making covers, Rinu often makes various skits and records game plays with the members of that can be found on both his channel and the Strawberry Prince channel. It can be assumed from the amount of covers the two have done together as well as game plays and skits that the member he is closest to is Root.
He stated that he's 18 years old in his cover of Hibikase x ECHO in June 2016.
He owns two dogs.
His dream is to become a voice actor.
As seen on his Twitter in multiple photos he has taken of himself, Rinu sometimes wears bright red wigs (similarly to his avatar) as well as respective colored ears and tail, typically assumingly when he has a performance to do. He is also shown to own multiple collars.
In his coming out post about his gender identity, he entered the world of Utaite because people had told him that he sounded like a boy, and thus further validated his feelings.
In the same post, he revealed he had also suffered bullying as a young child due to his GID.
Rinu knows a fair amount of English grammar, as seen in his video Rinu vs. English.
Both the Hiragana and Kanji spellings of his name contains the word/kanji inu (いぬ/犬) which is the spelling of the word "dog." This makes sense, as his avatar contains canine features, such as ears, a tail, and typically wearing a collar.
His persona has a little brother named Riken as introduced in Otōto o Shōkai Shimasu!!!!!!!! voiced by Rinu as well, but in a higher pitch. It appears Riken is cute, but two-faced.