The Hell Marine Festival was occurring in the Devildom ! It's a festival where you sing, and the theme was about something you love dearly. Mammon, obviously, loves you, but is too stubborn to admit it, especially in front of his brothers. He soon decided he would sing about you anyway, and let the entire Devildom know how much he loves you, but as a surprise. He goes into his room and starts writing the song, till you came in his room and seen him writing...