The man known as J is an American boxer and master of the Mach Punch technique.  In the manga, J is a student of the U.S. Annapolis Naval Academy.  In the anime he is a member of the SPA (Super Police Academy).    ~!After losing to Momo in a "Picaresque Match" (a dangerous variation of boxing that involves spiked iron gloves), J enrolls at Otokojuku to "master the madness" of the school and "brush up on his manhood".  Later in the manga his full name is revealed to be King Battler, Jr., son of the legendary boxer King Battler.!~

Otokojuku - a private school for juvenile delinquents that were previously expelled from normal schools. At this school, Japanese chivalry is taught through feudal and military fundamentals. Similar to an action film, the classes are overwhelmed by violence. Only those who survive it become true men. <br><br>
(Source: Anime News Network)

[Profile](https://www.aoni.co.jp/search/ginga-banjo.html) | [Wiki (jp)](https://ja.wikipedia.org/wiki/銀河万丈)

Married to voice actress [Gara Takashima](https://anilist.co/staff/95497/).

__Non-Anime Roles:__
- Hythlodaeus V - Metaphor: ReFantazio (VG)
- Commander Abraham Tower - Shadow the Hedgehog (VG)


Otokojuku is the kind of school that seems like it's up to no good. For most of their students, this is the only place that will take them despite or even because of their violence issues. Headmaster Heihachi Edajima believes that giving young men a military education will provide them with brighter futures, but how much is wishful thinking?<br>
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(Source: Manga Planet)