Mikawa and Gunma can both score through the frontcourt, but the path into those touches is the key. Gunma has built margins by stealing possessions and getting to the foul line. Mikawa moves the ball among several creators while keeping turnovers low. The first half should show whether Gunma can still create its usual possession advantage.
Gardner and O'Mara test Blackshear and Edu inside, while Kubota and Nishida give Mikawa separate passing routes. Gunma's Nakamura, Jones and Flippin keep its own attack from depending on one handler. Tsuji missed Gunma's last game after the club reported his injury, and that replacement group still played; Mikawa's case rests on its own handling and rebounding roles.
Mikawa opened fast in one Saga game and had to recover in the next, while Gunma showed a strong late response at Altiri Chiba. If the game stays close into the final quarter, Mikawa's secure first action can keep Gardner and the perimeter involved without feeding Gunma transition chances. That's why I'm siding with Mikawa to win.