[IKUNA-004] "IKUNA#8.0" Yui Hatano vs. Hibiki Otsuki, the most sexy showdown in the world of GAMANKO, the legendary showdown at the top! Season 2 of ``IKUNA'', a showdown of AV stars who always ejaculate climax showdown! Is it ecstasy to reach the climax at the end of orgasm? Are you fainting? Incontinence! Who is the best climax queen? AV