Mao Matsukai is a fictional character from Nijisanji, a popular virtual YouTuber group in Japan. Known for her playful and mischievous personality, Mao is a devilish figure with a penchant for causing harmless trouble. She often engages with her audience through interactive streams and creative content, showcasing her energetic and unpredictable nature. As a part of Nijisanji, Mao Matsukai brings a unique charm to the group, contributing to its diverse array of talents. Her role is to entertain and engage fans, creating a lively and enjoyable atmosphere.