I saw the raws (browse without understanding words)

The story is so heartwarming, from unloved orphan died in previous world (and other unfortunate events even growing up) to a very warm family in a fantasy world that can use magic. He finally have a loving and caring family in this life, even doting siblings! He was initially thought to have somewhat ordinary water magic but then...
the twist was written in the summary.

I just hope this won't turn into any form of harem or have a clingy/annoying/fan service fl in the future *cross fingers*