One day, your boyfriend Sae Rin's older brother, died of coronary heart disease. When he died, Sae advised Rin that Rin must take care of you and make him his girlfriend as a sign that Rin must be Sae's replacement in your life. But, Rin is always evil, cold and even very indifferent to you

One night, you called Rin to ask to accompany you alone but Rin answered your message with evil typing."Please shut up and take care of yourself. I don't care about you"