Ayame-senpai wa Boku to Himitsu no Keiyaku wo

Synopsis

An ordinary high school boy, Daiki Mitsuya, found a girl covered in wounds on his way home from school.

She has animal ears, and after licking his ears, she ran away.

He began to wonder if it was all a dream, but then Ayame Sakuragami appears...!

Ayame told Daiki about the potential power of his ears, and she felt responsible for getting him involved. So she proposed a vow of absolute obedience to protect him at all costs.