Yuu is reunited with Aki, a childhood acquaintance who returns to their rural village after working as a maid in Tokyo. Still wearing her provocative uniform and calling Yuu "Master," Aki rekindles a dormant tension between them. Their reunion culminates in a passionate encounter in the bath, leaving Yuu questioning the boundaries of their relationship and the reality of his desires.
Yuu and Aki-nee share an intimate moment while revisiting their childhood haunts, but a surge of jealousy leads to an accident that leaves Yuu unconscious for several days. While in a coma, Yuu experiences vivid, erotic fantasies of Aki-nee's total submission as his maid. After waking up and reconciling with Aki-nee, Yuu's life is further complicated by the arrival of Rie, a relative from Tokyo who moves into the village.