Ippon! again

The anime is set in Hiroshima Prefecture's Onomichi City, where a high school student Nashiko Jippensha was kicked out of her house. Without a place to play with her friends, she learns that the mahjong parlor that her father used to run is now vacant. She fixes the mahjong parlor and turns it into a place where she and her friends can have fun, cook, have tea, and sometimes play mahjong.

Ryou Mizushima enrolls in junior high and joins the badminton club with great vigor. Although the club didn't have a proper coach, Mizushima improved his skills with his own physical strength by the time he participated in the prefectural tournament. Afterwards, he is approached by the Yokohama Minato High School's badminton coach, Ebihara. Indecisive and timid, Mizushima hesitates to attend such a prestigious school. However, with his elder sister Rika giving him a strong push, he decides to go to Yokohama Minato. Now blessed with a coach and idiosyncratic teammates, Mizushima will gain experience he's lacked till now, and aims to win the inter-high tournament.

On her first day at Nishi High School, 15-year-old Hiromi Oka is inspired by top player Reika "Ochoufujin" Ryuuzaki to take up tennis. Shortly after joining the school's tennis club, she encounters Jin Munakata, the club's new coach. Munakata puts everyone under rigorous training that even puts Ochoufujin to shame. Despite the hardships, Hiromi's determination prompts the coach to select her as part of the club's main players. Because of this, Hiromi must endure the peer pressure from her seniors to become an ace tennis player.

The series revolves around the Mizuki Diving Club (MDC), which is on the verge of closing down after having financial troubles. The club's new coach persuades the club's parent company to stay open on one condition: that the club sends one of its members to next year's olympics as part of Japan's olympic team.