The hero in this manga has a split personality and each personality has it's own lover! Aki is right-hander and seme (but he denies his homosexuality), Ao is left-hander and uke (acts bad guy and reduces Aki's too much stress). One personality is afraid the other one will take over and destroy it. In the end, which will win? Ao feels he will be deleted by Aki and asks Sayuu to help him...