the slum boy and the beast

This is a beauty and the beast re-telling involving Levi and the beast titan.
once upon a time, there lived a young man by the name of Levi Ackerman. Levi lived alongside his mother in the slums within the walls. Levi's mother is dying from the plague and Levi is desperately trying to make enough money to afford her treatment. along the way, Levi gets involved in dangerous situations that eventually leads him into the hands of the beast titan. Will Levi be able to break the curse and find out the true identity of the beast titan or will he crack under the pressure?