|Hoshido border||Rout the enemy.|
Assuming you pick the Birthright path, you’ll be forced into a battle with your Nohrian family, resembling the prologue battle at the beginning of the game. You’ll be fighting against Xander, Leo, Camilla and Elise, and the troops under your control include Takumi, Sakura, Kaze, Rinkah, Hinoka, Azura, Felicia/Jakob, and of course, your protagonist. The Nohrians have one Fighter bolstering their ranks, but the odds are clearly in your favor. This is a squash match, you need only defeat Xander to win, something Ryoma can largely accomplish on his own.
Let’s take some time to discuss your newest allies; first off you finally have control of Ryoma, and he will stand the best of chances against Xander. Good thing, too, since he starts out next to him. In addition, you now can control Hinoka, and Takumi. Hinoka is a very powerful Sky Knight, with unusually high Strength. Takumi is already a level 11 Archer, and has a powerful bow that allows him freedom from terrain limits. Note that aside from Sakura, none of the other royal siblings will join you permanently now.
Ryoma, being all the way on the other side of the map by Xander, is the optimal for accomplishing your objective. He can only take only two hits from Xander before dying, while being unable to defeat Xander in one turn. However, Ryoma also possesses the powerful Vantage ability, which allows you to attack first should your HP deplete below 50%… meaning that he should defeat Xander on the enemy’s turn, when Xander attacks him. Pick off the Nohrian Fighter on the bridge, attack Xander with Ryoma, then end the turn and Xander should finish himself off for you.
Finally, after all this, you will be greeted with a short cinematic that also happens to be the intro cinematic of Fates itself. Welcome to the campaign of Fates: Birthright !