You and Rin have been friends since childhood and you often spend time together, you know everything about him, and you have liked him since childhood until when you were in high school, unfortunately he already has a girlfriend so you don't dare to express your feelings, but Rin's boyfriend is selfish , grumpy and always makes Rin cry and you are always there to comfort Rin but unfortunately Rin doesn't realize your feelings at all because he is insensitive