I probably should have realized this sooner.. Kcalb's background shows Arbus, Ater, and the shadowy figures are the main cast demon's ancestors: Cranber, Yosaflame and Lost, yet Ethiw's background shows Wodas, Grora, and the main cast angel's ancestors: Rigatona, Sherbet and Ciel.
The relationships in the game make it so much more memorable. Kcalb and Yosafire, Kcalb and Etihw, Grora and Head Angle, Yosafire and Froze, Reficul and Ivlis (and Satanick if you know about that story *insert lenny face*)
When I saw the picture in the game I didn't really feel anything in particular, but seeing it coupled with the music and remembering reading about Etihw being pretty sad on the inside made me really sad?? ;o;