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That summer, Sugiyama joins his tennis club teammates at a secluded training camp deep in the countryside. While he’s there to sharpen his skills on the court, his step-sister Mio has a much more intimate kind of training in mind for him.
However, his doubles partner Saeki catches a glimpse of what’s really going on between them… and now she can’t stop thinking about joining in.
Date: June 1, 2026
