Mikio Nagaoka

Nagaoka Mikio is the young heir to the Nagaoka family--a family of prominent former samurai who served under the shogun before the Meiji era. As his family's prosperity fell after the dissolution of the samurai class, Mikio and his wayward friends became a cadre of small-time burglars in order to gain wealth and power.

(Source: Rurouni Kenshin Wiki)