Survey Ships (RIVAMIKA)

THIS DO HAVE LEVI X MIKASA SHIP IN.
In this world every little mosters your parents told you as a kid was true just hidden from the human eye ..
But the most deadly of them all was a monster type called shadows ... they kill for joy and if a bit of there blood enters your body your will become one after a week and have no control just killing for fun any human of you would have been gone
Mikasa a thief, hacker and a person you wish to never mix in was just robbing a place on the wrong night and end up meeting a shadow while saving a small unknown cute boy called yukio who looking for someone important to him
Survey is a group of famous people with magic who protects people and making sure no one finds out about monsters ... there are two groups and two ships ... one day Levi bumps into a certain rare beauty who on a run from something and after getting mix in some crazy shit there lives turn forever