Jin Ju: the Ancestor of the Beginning, Allen Will Be My Little Brother

After traveling through the wall, I discovered that I was actually of royal blood, and had inherited the power of the "Ancestral Titan" from the beginning! The "plot correction system" is activated to set things right, correct the tragedy of the original work, and lead the humans within the wall to true freedom. Eren Yeager? From now on you will be my vanguard officer! Mikasa, Ani, Historia... For the future of mankind, you know! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.