Magic is restored to the world!
I like the look of the game, and it's very fun. The controls and speeds of character and bullets feel good, a boss fight with multiple phases is always fun to deal with and the bullet patterns are beautiful, the difficulty is one point and grazing for mana is a good implementation of the theme.
The game would probably benefit from some sound feedback when you get hit, and maybe when the boss gets hit too (and I guess the bullet triggering an impact instead of going through might be good too), but that's really no big deal.
Well done, thanks for sharing.