Firstly, the three main characters are Clive Rosfield, his younger brother Joshua Rosfield, and their trusted confidant Jill Warrick. Producer Naoki Yoshida revealed some additional information on the PlayStation Blog, explaining that Clive is the main protagonist of the game and is both the young knight and the older tattooed man seen in the game’s debut trailer.
— PlayStation (@PlayStation) October 29, 2020
The game takes place in a world called Valisthea, which the website describes as a land blessed in the light of the Mothercrystals. These crystals take the form of glittering mountains that tower over the realms around them, blessing them with aether that Valisthea’s denizens flock to in order to conjure magicks that let them live lives of comfort. Six kingdoms are scattered throughout the land, including the Grand Duchy of Rosaria, where Clive, Joshua, and Jill hail from.