[Twisted Confinement x Pure Love Drama] A male teacher who was trusted by his students was one day discovered to have been stealing a female student's underwear, so he was dismissed from his job and shut himself in. One of his students, ``Uika'', comes to see such a perverted teacher... When she says, ``I'm going to give you my underwear,'' her male teacher begins to have distorted feelings towards her as she offers her own underwear out of pure feelings... Imprisoned in a cage of his own desire