After the Dazzlings defeat, they were left to their own devices. With no magic, no influence, and no singing, they can no longer get what they want and need to survive from people. When Death's door comes to them, a strange Human finds them and takes them to his house.

Why is he doing this for them?

Where did he come from?

What does he want?

Although he wants nothing and says and thinks he has no needs, these girls may be the ones to save him from the darkness; just as what they need may be a caring damaged heart to change them forever.

My Little Pony: Friendship Is Magic: Equestria Girls Characters
Dazzlings - Adagio Dazzle, Sonata Dusk, Aria Blaze
Mane Six - Applejack, Rarity, Rainbow Dash, Pinkie Pie, Fluttershy, Twilight Sparkle
Sunset Shimmer