Did you know Hisoka's real hobby is collecting trading cards?
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Marginal Prince: Tokyo Merry-Go-Round
Marginal Prince: Gekkeiju no Ouji-tachi - TOKYO Merry-Go-Round
Keita and the other Marginal Prince are away from St. Alphonso Academy and meet each other in the city, where they meet Keita's sister.
Extra episode released with the 7th DVD volume.
