Jube is a short and bulky middle schooler, he has chops as his most striking feature. He dresses himself as a typical Yankii (a Japanese delinquent), he wears his black jacket open with torn ends and folded sleeves, a white T-shirt, black pants, and sandals, he also wears a black cap with a black peak, and an x-shaped buckle at the middle top center, which is torn at the back that mixes in with his hair.
Jube appears intimidating and aggressive at first sight, but he is very kind and friendly towards his friends, being a fan and follower of Pop☆Step, he is willing to assist the Vigilantes in capturing distributors of the Trigger drug.
- His surname, Namimaru, contains the kanji for “wave/billows” or “wandering/reckless” (浪 nami?) and “round” (丸 maru?). His given name, June, means “ten” (十 jū?), “soldier” (兵 hei?) and “defense/protection” (衛 e?).
- Jube's Quirk and appearance are references to the lone-wolf Marvel mutant Superhero vigilante Wolverine, and possibly Jotaro Kujo from JoJo's Bizarre Adventure.
- Jube shares his birthday with Vlad King.
- My Hero Academia: Vigilantes Manga: Chapter 5 (p. 8).