Yume was sent to stay at her uncle's house, but an unnatural brotherly bond existed within. The two uncles began treating Yume not as a mere temporary ward, but as an object to satisfy their twisted sexual desires. One after another, violent assaults were inflicted—her mouth and pussy brutally penetrated by their cocks—followed by extreme, surreal acts such as tickle torture, pissing, watersports, and nose hooks. The innocent girl's body gradually warped as she transformed into an obedient sex toy. The uncles' madness and sexual domination completely took control of Yume's mind and body.