He once liked someone, but this person's existence was only so insignificant. He wanted to love but couldn't make it public. The sadness in his heart could not be explained in a few words.
He doesn't care about him because he doesn't think he is in love. How can he know what love is and how can he fall in love with someone who has no heart but only responsibility?
Their fates are connected just because of a cover letter. The ups and downs in the middle are still there in the end. . . .