The shorter of the group, Momo is typically seen with a woolen cap.
Momo is introduced in the train where Krory departs to be an exorcist. He and his friends invite Tyki to a poker game but they cheat and deprive him of his clothes . Allen Walker takes his place and quickly wins back Krory's belongings as well as their own clothes. Allen gives them back their clothes and they leave for their new job. Momo tells Tyki and Eeez to hurry up before Tyki says he has a new secret job to do. Momo replied that there is nothing to do about it and the 3 comrades depart.