Help with the mission (Naruto to Boruto: Shinobi Striker)

take a defender and put the wall at the gate

Take a defender and his default sword, when you gather a group at the gate, breaks with the right mouse button. Repeat until victory.

As I did, took a defender, put a wall in front of the running monsters, they had hit her where they were kneaded. Those who have time to run to the gate threw dymovuhu and there churned)