The Upper moons were tired of Akaza's arrogant and aggressive attitude so they decided to place some cameras in his room to spy on him. They saw how he opened a closet and took out a hair ornament and a photo of him and a girl...Akaza started to cry

Kokushibo: That girl....it can't be.... in shock

Douma: Is he...remembering her, right?

Gyutaro: I don't know who it is but Akaza seems like an idiot

Daki: here the only imbecile was you, who only know how to ruin the moments! hitting his brother

Douma: Kokushibo, you were going to ask the girl to marry you before she disappeared, right..? How long has she been gone...?

Kokushibo: about 600 years ago...I can't believe it...

akaza kept crying