"You don't have to worry anymore; I'll take care of you forever..." Imprisoned by the girl next door—! Going to work every day feeling dead inside and being worked to the bone, one day I mistakenly think a plastic bag caught on a power line is a cat. In a panic, I lean out from the balcony to help, and that's when the girl next door thinks I'm trying to jump and comes to my rescue. When I come to, I find myself tied up in her house...!? "I'm going to protect you. I'll teach you the joy of living." With those words, she straddles me with her voluptuous body. I know I need to escape, but at this rate, I might end up being completely drained by this yandere girl next door...!?