The Prince of Tennis
OVA 4: The Trials of Rikkai, A Rebel who Challenges an Emperor (11x4)
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Another Story
OVA series: Messages from Past and Future
A flashback to when Kirihara first joins Rikkadai and challenges the last years winning regulars of the national tournament so that he can become number one. He loses to Rikkai's Big Three, but he vows to beat them.