My sister and her friend are so annoying! The "Haiyu" episode featuring the long-haired, tsundere girl with black hair. n_668accdl1036

The haughty, long-haired, black-haired girl, Haiyu, has arrived. Her grades have been getting worse lately, so her mother asked her brother to tutor her. But Haiyu brought her friend Riko along for a book club. Riko not only has twin ponytails but also huge breasts, making her brother so aroused by their close proximity that he almost wanted to do it...