One in the same(Shizuo x reader)

The beginning

Background(if you see any (y/s) it stands for your sex because my guy friends read it makes it easy on me):
Your character is a 20 year old that is about 5'8 feet tall.You have powers that allow you to heal fast, disappear in the shadows, change anything into a weapon,and sometimes you change into a evil part of yourself that wants bloodshed all over the world. You bump into Shizuo when you were on a job to assassinate a gang leader.
I was seen I got to get away before they find away. I need to- "Ow." says a man. I look up and see a young man that is about 23 and looked to be 6'1 feet tall. I turn to run, but they are right behind me. I look at the man and say,"I sorry for running into you!" I pull out my gun and was about to shot when I noticed they were running away. I turned and looked at the man and asked,"What is your name?" He look at me and said,"Shizuo Heiwajima what is your name?" I turned and walk a bit away and said,"my name is (y/n)." I ran towards my motorcycle and I drove away. When I got home and jump on the couch. I threw my jacket and helmet on the table. I walk in the bathroom and take a shower.
When I got out of the shower I walk to the kitchen to get something to eat but the doorbell rings. I look through the peep hole and I see a client of mine named Izaya Orihara. I opened the door slightly and say in a annoyed voice,"What do you want Izaya." Izaya replied,"I want you to get more information on someone." I look at him and say,"Do I have too? I just got home." Izaya shoves the door open and let's himself in. I look at him glaring. And say under my breath,"Sure you can come in" Izaya sits on my couch and says,"You have a nice house. I wish I could live here." I walk over to where he is and say,"Who is it that you want me to follow?" Izaya gets up and says," I want you to follow Shizuo Heiwajima and Mikado Ryugamine." I look at him and say,"Wait who is Mikado Ryugamine and why Shizuo." Izaya look at me and says," Mikado is a first high schooler that has black hair he is 5'5 feet tall. I want you to watch Shizuo because I need more info on him." I walked away from him and said,"Fine for how long do you want me to watch them." Izaya walks over to me and grabs my shoulder pulling me towards him and he says"As longs as I want you to do you understand." I try to pull away from his grip but he pulls me closer to him. I go to grab my dragger and Izaya says,"Ok I will let go but next time I might not." Izaya smiles slyly and leaves.