Attack on titan : The last humanity's mage (Levi/Eren/Mikasa love story)

This is a story about Lucy Fullbuster, Luna Heartfilia and Akira Dragneel being sent to another world by a leader of the thug because he can't accept being defeated by them. In another world that they were sent which be where titans and walls. They were found by Levi. The scouts were bringing them to the wall and having trials on them.

What will happen to them? Will they find love in another world? Will they survive or find a way back to their own world?