Nice game!
Very pretty sprites and cute introduction manga sequence.
I wish the game difficulty was a bit lower though. I'm not sure if it was the intended experience, but it almost feels like a Souls boss fight, where you die and suffer a lot.
Towa's hitbox is not easy to visualize (Touhou bullet hell games have a bright and easy to see "core" as the hitbox) and sometimes the Laplus assist shoots in the wrong direction, which is a waste.
Overall a cool game, but could be even better with some additional bugfixing and difficulty tuning. :)