My name is Makoto Kohaku, I died saving my sister but as long as she's safe my life was worth sacrificing for. D*mn I died having no girlfriend my whole life. Wait? why am I still conscious didn't I died?

Yes you died. Who is it? Hello I am Goddess Cerea kyun~! I will give you a chance to start anew that is if you accept. I'll give you a chance to reincarnate in another world. Now will you accept or not? kyun~?