A story involving Levi being extremely possessive and jealous over Eren. Reasons could be that Levi has been unable to become close or intimate with anyone (or he refuses to) because they would eventually die soon because that is part of being in the Scouting Legion. But after taking responsibility of Eren and having to basically watch over him, Levi gains feelings for him (although he is in denial) and it helps that Eren is basically unable to die. So Levi wants Eren to be completely his. Original story: snkkink.dreamwidth.org/2124.html?thread=1565516 Shingeki no Kyojin belongs to Hajime Isayama.