Oblivion
In the supposed past life that belonged to Captain Levi Ackerman, he fell in love with a shifter by the name of Eren Jaeger. The boy captivated him and they both were in a happy, relaxed relationship. However, during their last battle, Levi loses Eren as he is collecting any soldiers left on the sidelines. He sees his lover and holds him in his arms, watching as his life slowly drains from his body. Levi keeps a promise that Eren wished, they will meet in the next life.
In this new, modern setting, Eren goes to Trost University with his two childhood friends, Armin Arlert and Mikasa Ackerman, with the job of being a cafe barista who knows nothing about his past location and who his past lover even was, but his strength is being slowly drained by a sickness that he isn't aware of himself. Levi is a designer for a clothing company, creating models for his co-workers and being a more important superior for the Sina Production industry, being able to remember every single detail of the boy that he had a relatioship with, writing out their life and drawing the perfect image of him. When these two men cross paths in an common meet, will Eren gain thoughts of the Captain he once loved without another incident taking place?