a guardian like no other("saiyan" male reader x mortal kombat harem)

I don't think that they're is anyone that did a story like but let's see

a young man name y/n l/n 23 year old, was walking home when all of a sudden he see a young child running across the street trying to retrieve their ball when truck-kun was speeding down getting ready to hit his next target, but being the kind of guy you, you jump saved the child but at the cost of your life, now you was given a chance, a second chance if you will do something that can save countless lives and it's involve mortal kombat