Reincarnated in Atelier Ryza

Unexpected to be isekai'd and got adopted by Agatha Harmon, the strongest member of the island guardians, as her little brother, the reborned individual now named Alexis Harmon (haven't thought of a better name), joins his childhood friends' journey to find something out of their daily lives, but that's just Ryza.

Lent wanting to prove his strong by conquering the tower and Tio was dragged along, Ayron goes with them to protect them but he'll also discovered his mysterious power of controlling all 4 elements.

Armed with swordsmanship and hand-to-hand close combat from training, and the elemental magic to boot, Alex prepares himself for he... doesn't know a single about the Atelier series except it's a cozy alchemy game.

-

This focus on the first game of the trilogy Atelier Ryza... Actually, the anime version of it.

Atelier Ryza: Ever Darkness & the Secret Hideout developed by Gust in 2019, known for the first time to newcomers for... Ryza's thighs as a change of character and market strategy... At least what I heard off from the reviews.

Also title... I haven't thought of a proper title yet.