Jinin Akebino
Jinin was a former member of the Seven Ninja Swordsmen of the Mist, best known for his mastery of Kabutowari—an unconventional weapon that pairs a single-bladed axe with a hammer, connected by a leather strap. The design's real strength lies in its strategy: strike with the axe first to create a gap, then drive it deeper using the hammer head like a wedge, essentially turning the axe into a splitting tool capable of breaking through almost any defense.
What made Jinin stand out was his ability to fully utilize both components. Rather than treating Kabutowari as a single weapon, he could switch between exploiting the axe and hammer independently, each retaining its own advantages depending on the situation.
Manga Debut: Chapter #522
Anime: Naruto Shippūden Episode #265
Content compiled by AnimeList.moe from publicly available sources.