College student "Ai". Living with her grandmother at home, she receives a sudden visit from Director Iku. A girl who loves erotic things and is obsessed with adult videos, she gets drawn in by Iku's persuasive charm and lesbian techniques, experiencing lesbian sex despite being straight. Her heart races at the sight and sensation of vibrators and dildos she's never seen before. Sex between women feels better than she ever imagined, not only arousing but deeply moving to her heart.