Sakura Ushikubo  

, 牛久保櫻

Sakura is the daughter of Ushikubo Medical Manufacturing Group's head and Kei's first omiai partner. Although she doesn't find him attractive, she considers him a potential marriage partner due to his abilities being beneficial for her family's business. Sakura detests dishonest people fervently, and her family motto revolves around honesty and punishing those who are deceitful. Hikari's straightforwardness allows the two girls to become friends. They attend the same school as Yahiro and sometimes collaborate on plans with him, whether they are good or evil. Sakura falls in love with Jun at first sight because he embodies her ideal of a "prince." She accepts his split personality, and they start dating soon after. However, due to her assertive nature, she's unsure if Jun returns her feelings until he confesses it to her. Sakura makes her debut in volume 4.