Can I Get Married if We Had Gone to the Koshien!? - S1.E1

Ken rushes to Rei's wedding and through the ceremony he suffers regret at never being able to articulate his feelings. A magical being in the church takes pity of him and allows him to "time slip" through certain photos. This gives Ken a second chance to relive key moments in his lives. Initially Ken returns to the final game of the season where he has another opportunity to win the game and make the playoffs.