After the training, you are more confidence to fight in battle. Yudai tells you to go back to front line as he wants to end this battle as soon as possible.
Yudai: "[Character name], people are suffering because of this battle. I want to end this battle as soon as possible. Therefore I need you to go to the front line and help. Get prepared and go!"
Before battling Kuken[]
Kuken: "You can surrender, maybe I will let you go."
Ending[]
Vadar (with mask): "Huh! Go back and tell Yudai that "Fire Village Kinjutsu" has been released, a dark beast will come at any time." You have no chance to stop all this, and you came all the way to here. How many Medic Ninja are left in the village?"
Failing[]
Vadar (with mask): "I don't think you can even touch me if you can't defeat Kuken."