Reincarnated as the mc best friend!?

Miles kenti a 26 year old guy was walking down the street from a sweet shop with his 12 year old sister Nicky kenti. Nicky was running ahead she didn't realize the light was green and ran into the street. Miles saw and ran over to her pushing her back onto the side walk getting hit by a car. Miles thought this was the end he thought he would never be able to see his sister again. He tried not to close his eyes hearing his little sister crying and screaming his sister ran up to him grabbing his hand mumbling "pls don't leave me big brother.." miles couldn't keep his eyes open anymore and that was how miles kenti was reincarnated into "lover power 3000"