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Kenkou Zenrakei Suieibu Umishou – Season 1

The Ninogawa houseraft reconstruction is proceeding smoothly. On the way to school, Amuro meets Maaya Nanako, a model and competitive swimmer. They are soon surrounded by a crowd which includes Kaname, who apparently was childhood friends with Maaya. She has transferred to Umishou and will be on the swim team.