Tennis no Oujisama Movie 2: Eikokushiki Teikyuu Shiro Kessen!

Following their success at the Nationals, Seishun Academy is invited to compete in a prestigious junior tennis tournament at Wimbledon. The excitement builds as Ryouma Echizen and his teammates prepare to face not only new international opponents but also familiar rivals from Hyoutei Academy, Shitenhouji Middle School, and Rikkai University-Affiliated Middle School. However, the atmosphere takes a dark turn when a violent attack leaves several players hospitalized, with the only clue being a distinctive silver ring worn by the assailants, led by a mysterious figure named Keith.

Determined to protect their team and resolve the escalating situation, the young athletes gather to strategize. Their plans are interrupted by Ling Xiu, who previously saved Ryouma during the attack. Xiu reveals his past as a member of Clack, a notorious group of tennis players notorious for their aggressive tactics, now banned from formal competition. Despite the warnings about the dangers posed by Clack and its members, Ryouma's resolve intensifies. He secretly teams up with Xiu to confront Keith, driven by the desire to not only defeat him on the court but also to help him break free from the cycle of violence that defines his past.