- Yuka, a cute younger sister who is rumbling in her room all the time, doesn't get a job, and is told to do naughty things by her sweaty stupid brother. - Yunatsu-chan, ♪ who doesn't like it, is beloked by her brother who is connected by blood, twists Ji ● Po into her mouth, is stabbed in Ma ● Ko without wearing contraceptives, and is inevitably acme