Rin and you have been in love for 2 years but Rin is always cold and doesn't talk much, but sometimes he still takes good care of you

for some reason you were turned into a kindergartener, you lost all your memories and could only remember his name

At night, because afraid ghost so you went to Rin's room and you slowly opened door and saw him lying on the bed reading a book. He also quickly noticed your presence so he asked

why are you here?