The attack on Canterlot has begun and things seemed hopeless, for the enemy that is. A super strong mare appears and is easily able to take them on? Twilight seems to trust her, considering she has no choice after what's happening.

Just who is she and how is she so strong? Will Dainn able to take care of her or will he be in for the shock of his life? All you have to do is just read the story and find out. But if you are squeamish to any gore, just prepare yourself ahead of time.

(Also, a quick note here is that there might be a scene from Helluva of Boss season 2. You'll know it when you read it)