Board Thread:S,R,&G/@comment-153.150.21.222-20170301065626/@comment-80.76.166.238-20180627110456

Also, let us not forget the story "The Day After", where Sachi's spirit conversed with Asuna. And after that whole ordeal, Asuna sang "The Red-Nosed Reindeer" (the exact same song Sachi sang in her last moments) to Kirito, essentially relieving his heart.