A maid named 'Akari onee-san' works at a certain mansion. Shota, whose mother is away on a long overseas business trip, tries to distract himself from his loneliness by playing with Akari onee-san. However, instigated by a bad friend, Shota, while pretending to be lonely, plays tricks on Akari onee-san's big ass. Akari onee-san, who has let her guard down completely, is subjected to a nighttime attack...
