Asu no Yoichi! is a Japanese anime series based on the manga written by Yū Minamoto. The story follows Yoichi Karasuma, a samurai who has spent his entire life training in the mountains. When he moves to the city, he faces new challenges, including adapting to modern life and attending high school. The series combines action, comedy, and romantic elements as Yoichi learns about friendship and love in this new environment.