Overview:

The protagonist wanted a hypnotizing app so badly that he ended up making one himself.
After school, he immediately tried it out on a classmate who happened to be there.
From the day he confirmed its effectiveness, after school became his time to play pranks on her.
He would take off her clothes, touch her, and even have sex with her.
Sometimes he would leave her under the hypnotizing effect, and other times she would regain consciousness.
At first she glared at him, but before long…