Runa, a sociology student at a women's university in Tokyo. She's been dating her new boyfriend, and as their dates continue, their relationship grows deeper each day. After every date, they head to a hotel and enjoy passionate sex together. Runa takes his penis deep into her mouth, sucking him with wet, slurping sounds that drive him wild with excitement. When he slowly thrusts into her from behind, she moans loudly, expressing intense pleasure with every deep penetration. To confirm their love for each other, they finish with creampie sex without a condom. Their deeply affectionate relationship unfolds like a romantic movie.