Happy Birthday Dazai-sensei!
Song: Eien misui ni good bye
Performed by: Miyano Mamoru
From the first Bungo Stray Dogs Character Song Album.
Lyrics Translation: https://ichiyo-higuchi.tumblr.com/post/149179030789/eien-misui-ni-good-bye-lyric-translation
Quotes: Dazai Osamu's "No Longer Human"
آی-ویدئو