The hikikomori 'Ran' is sexually abused by her brother-in-law on a daily basis. "Ran can't go outside, so I'll go shopping for you." Her brother, who smiles humbly and acts kindly, always demands something in return. "I went on an errand for you, so make my dick feel good..." He rubs his hardened crotch against Ran as he becomes aroused. He intends to stay in the room until he ejaculates. Everything becomes troublesome, and Ran accepts her brother's request. However, her brother-in-law's sexual desires gradually spiral out of control...
