Do You Think You Can Run After Reincarnating, Nii-san?
Japanese title: 転生ごときで逃げられるとでも、兄さん？
Raws: https://ncode.syosetu.com/n7437dj/
Synopsis (Taken from NovelUpdates):
Five years since I graduated from high school, and within those years, at the same time I was confined by my younger sister, but it all ended when I ran away and died being hit by a truck. At last I’m free from my devil-like sister! Well, that’s what I thought but my sister was reincarnated with me at the same time in the same world. But this time, I’ll escape from my sister’s clutches and live my life in a different world freely. With the strongest weapon and class I received from god.
CHAPTERS
Eren's Translations 