Complete the indicated task to unlock the corresponding character.

Character	How to unlock
Kresnik and Kudlak	Defeat Kudlak by returning the bag to either Kaido or Mari, and let Mari get the last hit.
Lucifer	Defeat Lucifer in New Game+ mode.
Pazuzu	Defeat Kaido.
Yama	Give Kaido Mari's bag and defeat Keisuke.
Zouchou, Koumoku, and Bishamon	Almost any route except for Yuzu; mandatory battles.