Ryo

Ryo is about the son of a samurai who lost his parents during the attack of English ships on a Japanese town who is given the name Ryo and becomes the bodyguard of Ryoma Sakamoto, a man who has his own plan to fight for the country.

(Source: Anime News Network)

Note: Ryo was one of the four films of Anime Mirai 2013 (Young Animator Training Project), a project funded by the Japanese government's Agency of Cultural Affairs in order to support training animators.