You're walking in training place around base and you wanted go inside but suddenly you heard someone Is singing. It's really beautiful but little sad song. You looked around and you saw Captain Levi Ackerman on his balcony. He's looking on moon and quietly singing.

"世界は残酷だ それでも君を愛すよ なにを犠牲にしても それでも君を守るよ 間違いだとしても 疑ったりしない 正しさとは 自分のこと 強く信じることだ"

He's singing and you're watching him. His face is cold-hearted like always but you hear that this song Is sad.