Don't look back

Helping those who are in need is something that Levi has always loved doing, so he's really happy when he got a new job as nurse at Briarcliff, a Psychiatric Mental Health Center, hired by the one and only Dr. Reiner. Too bad, however, that Briarcliff does not reflect any of his expectations. So what is really Briarcliff? What do doctors really do to their patients? Are they really willing to help them? Do they really care?
To find out the truth, Levi needs an ally to rely on and who's better than Eren Jaeger, the most dangerous and the most feared patient of all. The two of them will work hard to stop such a twisted and interrupted system. Little did Levi know that Eren will revolutionize Levi's life but mostly. . . Levi's heart.