Chichi no Tamashii

Chichi no Tamashii (父の魂) is a manga series by Hiroshi Kaizuka.

Plot
The story of a boy named Hayato Nanjou and his life about baseball. Troubled between becoming a professional baseball player like his departed uncle or succeeding his father's baseball bat manufacturing business, Hayato faces the challenges ahead of life while rising to the stage of his dreams.