Tsukimino Karma wa Akumade Boku no Pet nanoni

A boy named Ryou Fudou is often alone due to his intimidating appearance. He is saved from a truck by a woman later referred to as Tsukimino-san. In an attempt to express gratitude, Ryou follows her and accidentally interrupts a moment where she asks if he would still love her if she were a demon. She tries to erase his memory with a spell, but it fails due to Ryou's apparent resistance to magic. She then tries to bind him as her "pet" with a spell, which also fails. As she begins to be swayed by Ryou's actions and words, the failed pet spell unexpectedly falls on her. As a result, Tsukimino ends up in a reversed role, becoming Ryou's pet.