Last Samurai is a supporting character in the anime Phantasy Star Online 2 The Animation. He is the in-game avatar of the proprietor of the Niwaya, a hot spring inn that features in the series. In real life, this proprietor is married to Yumiko, and together they have one child. His appearance is that of an adult male with short black hair and blue eyes. He wears a hat and sandals, and has a facial mark with one eye showing. His character design evokes a traditional samurai theme, consistent with his chosen name.

As a character within the digital world of Phantasy Star Online 2, Last Samurai is a capable combatant. In the context of the anime, he is frequently seen paired with Yumiko, a level-headed deuman who uses a bow. The two characters operate together, likely reflecting their real-life relationship. His role in the story is that of a supporting figure, connected to the Niwaya inn and its community. His motivations are tied to his responsibilities as an innkeeper and his family.

No detailed background or personality traits beyond these basics are recorded in available sources. His development over the course of the series is not documented. As an in-game entity, Last Samurai was introduced as a temporary non-player character in the Phantasy Star Online 2 game update on July 20, 2016, which required specific client orders to access his partner card. These in-game missions included clearing certain areas with only Last Samurai in the party, and later with both Last Samurai and Yumiko. His cosmetics were bundled with the Vol. 5 Blu-ray and DVD release of the anime.