University student Tsukino Ryo was wondering if he likes men. Wanting to take a step forward, he applies to join a gay sex group "Polaris," but the moment he's about to go to a hotel with one of the group members...he gets scared. Suddenly, a familiar handsome man named Shinji, who says he's a part of the group, appeared in front of Ryo and told him not to come to this place and to go home.
Ryo is relieved that he didn't have to have sex with a complete stranger. However, the next day, he discovers that Shinji is his senior at the same university. He tries to thank Shinji for saving his life, but...