Zatch Bell!

Apollo, the Free Traveler (1x24)

:

After Zatch and Ponygon damage the gate in front of Kiyo's home, Kiyo goes to the store to buy supplies to fix it. While there, Suzy is almost hit by a car but is saved by a stranger and his Mamodo. Kiyo follows him and realizing that he's a good person, decides to avoid a battle. The stranger reveals that he knows Kiyo is a book owner. They talk and Kiyo learns that Apollo and his Mamodo is Rops have been avoiding battles whenever possible. Apollo becomes interested in Kiyo's story and challenges Kiyo to a battle. Apollo tells Kiyo to meet him in two hours with his Mamodo. Zatch when unable to fix the broken gate himself, runs away and wonders whether he should return to the Mamodo world as he is just a nuisance to Kiyo. Zatch meets Lori who reminds him of his goal to become a kind king. Kiyo finds Zatch and they begin their battle with Apollo. Apollo gains the upper hand when he knocks Kiyo's book out of his hands and threatens to burn it.