I Remember The Ribbon In The Sky

It's been almost three years since Himchan lost Daehyun, the only man he'd ever loved. He's never recovered from the loss, and now the date has rolled around once more, and he finds a box under the bed. Inside were letters upon letters from his love, from profuse apologies about keeping his sickness a secret, from declarations of love, to simple conversations. Will Himchan survive another year without his baby boy, or will he finally give up on living?