The mysterious man, Renji, reveals he is the book user of the dog 
Mamodo, Gofure. Zatch is unwilling to fight, believing he is a monster 
and Kiyo would be better off without him. The pair easily defeat Renji and burn his book. During the battle, the pair are revealed to be Sherry Belmont and Brago. Using "Gravirei",
 they demand Kiyo to surrender his book or be killed by the spell. Kiyo 
refuses saying Zatch is his friend who saved him and that he will repay 
the favour. The pair prepare to use their strongest spell, "Gigano 
Reis". Zatch happy Kiyo considers him a friend, regains the will to 
fight. Using "Zaker" they were able to cancel the Brago's spell but Kiyo
 losses consciousness in the blast. Sherry decides to spare Kiyo and 
Zatch and leave saying they shall return for Zatch's book one day. 
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