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Muscle Boy
Muscle Punch
Japanese Name: 筋肉ボーイ
Romanized Name: kinniku boi
English Name: Magnet
First Appearance: Chapter 1 (Manga)
Episode 1 (Anime)
Affiliations: Ryu's Gang
Japanese VA: Nobutoshi Canna
English VA: Marc Thompson

Muscle Boy (筋肉ボーイ, kinniku boi) is a member of Umemiya Ryunosuke's Gang and is his adviser.


Muscle Boy wears a red wool hat, shorts and a orange jacket with a M (for his nickname) on the left sleeve.



Meeting with TokagerohEdit

Muscle Boy takes Ryu and the gang to the abandoned Funbari Bowling Alley asking him if they can make it their new best place. However, Ryu refuses because it is too far from the train station and there are no convenience stores nearby. When Ryu is possessed by Tokageroh, he tells his gang to break into the museum and steel Amidamaru's Harusame. however Muscle Boy refuses because that would make him a burglar and ends up getting stabbed in the leg by ryu. Ball Boy helps carry Muscle Boy to Yoh's House so they can stop Tokageroh from killing Manta.

Shaman Fights in TokyoEdit

Before Ryu goes to America, Muscle Boy and the others write him a farewell card.

Travel through AmericaEdit

Muscle Boy is mentioned by Ryu claiming that anybody that looks like him may not be a bad guy after meeting Chocolove.

Anime/Manga DifferencesEdit

In the English anime, the scene when Tokageroh possessed Ryu and stabs Muscle Boy in the leg is however edited out.


  • According to the Character Files, Muscle Boy has ten siblings


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