Ooh, Fire Emblem meets time shenanigans! I love it! The characters are cute, the story is interesting, and it's very impressive you made such a robust Fire Emblem combat system in the game jam. Fantastic work!
The in-game tutorial is greatly appreciated. Always good to have clear instructions for a game-jam game, that's easy to get lost in the rush.
As mentioned, it would be nice if there were more options for how to play. One idea might be something like Plusmate kills increasing La+'s health, while La+ kills increase her damage. Or more variety in allies/enemies.
I hope you had fun this game jam! Thanks for making this!