Kanpeki Ojou-sama no Watakushi ga Dogeza de Mazo Ochisuru Choroin na Wakenai Desu wa!
English SUB
A princess in every way except that under her calm and cool exterior lies a masochistic slave who wants nothing but punishments. Is there anyone who can tame it? Who can earn the right to be their master? Who's the cold-eyed kid who shows such indifference to her when everyone compliments her?