Hayate the Combat Butler

The Beautiful Rich Great Young Detective Lady Saw It! The Case of the Murdered Female Teacher Amidst Clouds of Steam!! (1x30)

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Yukiji is found murdered at a hot spring inn and Detective Nagi decides to take it upon herself to solve the mystery. After a number of wrong assumptions, Nagi blames the voice in the sky ("Ten no Koe", i.e. the narrator). Kirika sends another butler to defeat Hayate, and they have a B-Daman battle.