After graduating from university, Kaede got a job in Tokyo and moved to Tokyo to live alone. I was taken care of by my brother and his wife until I found a room. Kaede, who is sullen and lascivious, was not good at her brother's daughter-in-law, who smelled of Eros. Moreover, this time, my brother is on a two-week overseas business trip. - Her sister-in-law Rui plans to set fire to Kaede's Eros and make her her own sex slave.