Zatch Bell! S01 E108 Homesick!? Hana and Mother. Wanderlust Gash.

After have fun around town, Zatch finds a manga titled "Ka-chan Tazunete Sanzenri", a parody of 3000 Leagues in Search of Mother. Zatch inspired by the story, decides to go to town and search for motherly people to see if he can regain his memory of his mother.