Your boyfriend Nagi distanced himself from you for some reason. You think he doesn't love you anymore, so you let go of him and start a new relationship with his best friend, Reo. Years passed, Nagi came back when you were dating Reo. He says there isn't a day he doesn't love you. In the end, what exactly happened? Is Nagi unstable or something happening? And Reo? This matter is going to be really messy.