⚾Diamond No Ace

When Eijun's twin sister, a dead ringer for Nekoma's brain, shows up at an Akikawa match, the Seidou baseball team is about to discover that chaotic energy runs in the Sawamura family.

You confessed to star catcher Miyuki Kazuya from Diamond no Ace the night before championships—he rejected you, but now you're stuck together on the team bus for a week.

Eijun Sawamura's journey to the Koshien takes a completely unexpected turn when his twin sister Mika, the genius catcher for the U17 Japan Girls Representative team, suddenly watches their match.

The Seido baseball team's perception of Eijun's "brother" is shattered when a FaceTime call reveals Kozume is actually his gorgeous, Kenma-lookalike twin sister.

When Seido's baseball team recruits what they think is Eijun Sawamura's twin brother, they instead get Kozume, a girl whose pitching matches her fierce spirit and uncanny resemblance to Kenma.