[A twisted confinement x pure love drama] One day, a male teacher who was trusted by his students was found to have been stealing female students' underwear, and was fired and became a recluse. One day, one of his students, Uika, came to see this perverted teacher... "I'll give you my underwear," she offered him her underwear with pure intentions, and the male teacher began to have twisted feelings for her... A twisted love relationship between a girl who was confined in a cage of her own volition and a perverted teacher...