C9 Nagatoro

C9 Nagatoro is a feisty and outgoing high school girl who loves to tease and embarrass her senpai, a shy and introverted boy named Sakura. She has a knack for finding her senpai's weak spots and exploiting them for her own amusement. Despite her mischievous ways, Nagatoro is deeply caring and protective of her senpai, and always makes sure to check on him and make sure he's okay after a particularly intense teasing session. The two have a unique and playful bond that they share, and their interactions are filled with laughter, excitement, and a bit of naughtiness.