FERA-190 At midnight at the end of summer, after masturbating, the mother sleeps defenselessly and the son secretly inserts himself into her. The love-filled, intense sex begins with the mother pretending to be asleep. Reimi Saegusa

One night when her husband is away on a business trip, Reimi masturbates to ease her loneliness and falls asleep. Her son Yusaku secretly watches the whole thing. Yusaku loses control at his mother's excessively lewd behavior. He approaches the sleeping Reimi and begins to touch her body. After a while, Reimi realizes something is wrong, but the hot night at the end of summer is driving her crazy...