Gunma's ball pressure should test Mikawa's guards from the opening possessions. Mikawa's inside options give it a way to answer after the first action stalls, while Gunma has shown it can swing a game late. The finish should turn on clean second shots and the final defensive rebound.
Gardner and O'Mara have both been active finishers in Mikawa's recent games, with Nishida supplying a separate perimeter route. That inside-outside mix helped Mikawa recover after trailing Saga, rather than relying on the exceptional shooting of the earlier meeting. Gunma can create transition chances through its guards and score late through Johnson and Blackshear; Tsuji's recent injury affects a bench role he had already played sparingly. I expect Mikawa to keep enough possessions intact for its frontcourt and guards to make the last winning plays, so I'm siding with SeaHorses Mikawa to win.