Ayame-senpai wa Boku to Himitsu no Keiyaku wo

A high school student named Daiki Mitsuya encounters a girl with animal ears who is injured and licks his ears before fleeing. Initially doubting whether the event was real, Daiki later meets Ayame Sakuragami, who explains the possible significance of his ears. She takes responsibility for involving him and offers to protect him unconditionally in exchange for his complete obedience.