SCB-004 — Big Breasts Tormented By Ai Ichinoki

Makiko is a university student and her half-sister Yumi. Yumi, who lives a free-spirited life, often causes financial trouble for Makiko. One day, Makiko, who had a rare encounter with a drunken man, was embraced by Yukio, who had dropped her off. Since then, the relationship between the two has continued, but Yumi was also having an affair with Yukio. Yumi, who was the c** of a concubine, begins her cruel revenge.