Rinkai!

The story is about Hyuma Hoshi, a promising young baseball pitcher who dreams of becoming a top star like his father Ittetsu Hoshi in the professional Japanese league. His father was once a 3rd baseman until he was injured in World War II and was forced to retire. The boy would join the ever popular Giants team, and soon he realized the difficulty of managing the high expectations. From the grueling training to battling the rival Mitsuru Hanagata on the Hanshin Tigers, he would have to take out his best pitching magic to step up to the challenge. (Source: Wikipedia)

After losing almost all their members the Tobita Crush Gear club is facing extinction. Kouya who dreams of being a Crush Gear Fighting Champion doesn't want to see the club become extinct and will do whatever he can to keep the club running and become a Cush Gear Champion.