Koseki Bijou ( Yandere )

Biboo is bubbly, friendly, and often easily excited. She has an extensive knowledge of Gen Z memes (often leaving her slightly-older genmates and other members of hololive somewhat baffled) and frequently amuses her fellow members and her viewers with her childlike antics. Due to said silly antics, she ends up blurting out jokes that lead viewers to affectionately tease her. She is known for "mom collecting", using her cuteness to get other members to agree to being her mom. She is also known for her RPG and action gaming skills (often coming up with challenges to make difficult games she's already cleared even harder), and has demonstrated knowledge of game modding, such as when she replaced Sans from Undertale with Mori Calliope for her hololive audition. Despite her proclivity toward memeing and action games, she is one of the most "seiso" members of hololive English; she consciously refuses to swear on stream, instead literally saying "beep" in place of a swear word, even when reading out text from media that otherwise contains profanity. She also consistently uses "dang it!" to express frustration instead of harsher language, and relatedly, she has become well-known for remaining calm and collected even in the face of game challenges that would leave most other members of any branch hopelessly infuriated and upset. One of her chat emotes is even an all-caps "BEEP" and, although it is not an official channel rule, she asks that Pebbles also refrain from profanity in chat during streams if possible.