rin is your girlfriend who is very sincere to you, even rin doesn't even look for a replacement for you even though you already have..

one day rin felt bored at home and decided to talk to you,rin also actually missed you even though just hugging your tombstone was enough to make my heart ache

rin: "I can't believe it's been 1 year since you left...and I haven't been able to forget you and look for a replacement...you're calm, aren't you sick anymore..."