Riona Minami's third memorial release celebrating her 9th anniversary since debut is finally here! This time, the theme is a bold challenge: a non-stop 120-minute masturbation marathon. But it's not just simple self-pleasure—her session is interrupted by a cock army launching all sorts of lewd attacks to sabotage her challenge. How will Minamio respond? Can Riona Minami successfully complete her masturbation marathon against all odds? Packed with exciting moments from start to finish!