Matsumoto Hinata, a lonely otaku, finds her only daily joy in watching streams of the VTuber Amami Yō-sama. On her first day at a new school, the person sitting next to her is Mikage Tōma, a boy feared by everyone after suddenly causing a violent incident during the entrance ceremony. Now, a love story begins between a fangirl devoted to her "idol" and a yakuza boy harboring a massive secret...!