Japan in the future. For some reason, teens have to take a special class where they are assigned to have sex with people of the opposite sex.
Our main character, Sawada, is assigned Satonaka, the cutest girl in the class, who is a tsundere to boot.
Quality checkers: Cadenza, freudia
[Sakai Hamachi] Shuffle Relations (COMIC AUN 2015-04) [English] [Team Koinaka]
[堺はまち] Shuffle Relations (COMIC 阿吽 2015年4月号) [英訳]