Monster hunters Isumi Yokoso and Nabeshin

Hayate the Combat Butler – Season 1

Isumi is planning to come to Nagi's house but she ends up getting lost again. Fortunately for her, Sakuya finds her, but along the way, they find a man with the head of a carp who begs for their help. The carp man asks Isumi to phantom bust phantoms who are tampering with his lake.