The game is a lifesim/mystery game about a magic girl who loses her powers and has to move back to her grandmother's house to try and relearn the powers. It is a cozy game with romance over tones. I'm thinking something along the lines of 'Magic Hour' by &team or the more ethereal parts of the DandaDan opening.
A seemless loop would be great since the game has a cozy lifesim feel to it