Ace of Diamond

Ace of Diamond (Japanese: ダイヤのAエース, Hepburn: Daiya no Ēsu, also known as Diamond’s Ace) is a Japanese shōnen baseball manga series written and illustrated by Yuji Terajima. It was serialized in Kodansha’s Weekly Shōnen Magazine from May 2006 to January 2015. A sequel titled Ace of Diamond Act II started in August 2015.