I Was Reincarnated but I Don't Know Why

By the time I noticed, I was staring at the hands of a baby.It seems like for some reason, I got myself reincarnated.I also knew that I posses great power (Physical).However, I was born in a really small peaceful village,and there’s no place for me to demonstrate that power.I’m also able to make friends with someone, but she was born with a sickly body…I tried doing various things in order to grasp my power,what I thought at that time was 『I want to go on an adventure freely』.Incidentally, when went to the capital I raised a fuss, why won’t you let me do whatever I want?And that’s where everything began.