Available: Benny
Recruitable Character: Ignatius
Ignatius will be standing guard alone by the village entrance. You have to get to him as fast as you can. Your fliers will be your best choice for mobility here so partner them up with your strongest units and deliver them as near to Ignatius as you can. The enemy boss is also carrying a Friendship Seal. The maid to the west of the village also has Freeze will can lock your characters in place and delay your rescue. Prioritize taking her out and move the chunk of your force towards the village.
Your priority is to bring Benny in front of the village to talk to Ignatius. Once done, Ignatius will become part of the party. If he has the Offspring Seal, you can use it to transform him to either a General or Great Knight. You should advance his class to be able to help in this battle. Once done, you can just keep him standing on the village's entrance to protect it. Finish off the remaining enemies to complete the mission.