However, the other entrance at Matsumaeguchi fell under the attacks of the enemy, and as there was a risk of losing a route for a retreat they had no choice but to return to Goryokaku.
しかし、もう一方の松前口が破られて退路が絶たれる危険が起こったため、やむなく二股口を退却、五稜郭へ帰還した。