What if Founder Ymir put to hidden Titan of Tenth Titans called The Crystal Titan. The world though it was Nine Titans, Ymir keeps a secret of Tenth Titan called 'The Crystal Titan' for 2,000 years knows as Nonexistent Titan. Qia Yeager, an older brother has always protect Eren, Lina, Armin, and Mikasa since they were kids. Qia Yeager got the power of the Crystal Titan. He decides to protect his friends and Paradis of People from the world. I'm not own Attack on Titan! Attack on Titan AU

What if Dina ate Bertholdt and take the Colossal Titan. I not own Attack on Titan!

What if Gi-hun listen to Front-Man and takes the knife to kill all Finalists to save himself and the baby.

What if 15 Titans. Humanity already know Power of 14 titans, they clueless one Titan was great hidden from the world. (I not own Attack on Titan)

Eren will back the past with his future self. And went to Reiss Family, meet Frieda will happen? He stayed with 3 Titans Powers... Ymir the Founder break him a curse only.

Eren and Historia was 8 years old. Grisha visited Reiss Farm... Eren will meet her and saw her bullies. Eren Will saved and friend with her?

Eren died by Misaka. Ymir decided give him second chance from horrible future. Eren will fix everything! Warn I am not good English Writer! This is my first story.