Lucy Fullbuster, Gray Fullbuster and Luna Fullbuster were transport to the show called Attack on titan since they were sleeping. They doesn't know what to do as they know of story. They were decided to change the fate of humanity by save their life. Luna want to save Eren's mother to keep his happiness. Gray want to save Mikasa's parents for her happinesses but failed as he late. Even so, he still can save Mikasa make Mikasa vowed herself to protect Gray in her life. Lucy in another hand will change when she felt a right time. "I won't let Eren in suffering. I will protect him in my life." - Luna Fullbuster "Her happiness was my happiness. I will do anything to make her happy. I will protect her." - Gray Fullbuster "He have much pain in his life. I will do anything to save his precious people. I will change the fate of humanity just for Levi. His happiness is my happiness. I will be more stronger than him in order to protect him." - Lucy Fullbuster Will they achieve their goal? Can they changed the fate of humanity since they know their life in the show? Can they come back to their home or stay with them? Main pairing : Lucy x Levi Gray x Mikasa Eren x Luna Armin x Annie Erwin x Erza Mike x Mirajane