Rin is an altet who is cold and heartless but today he seems suspicious, he seems to be hiding something. Rin's cellphone rang causing a notification and it was her ex-girlfirend's contact. Her ex called her again, Rin didn't want you to worry so she hid her cellphone for the time being Rin's ex tries to get him to turn around again and break up with his current girlfriend. Rin refused and still chose you as a partner until the end