This is a pretty unique game! I like the idea of a dark magical girl stealth game. The atmosphere is spot on. The core mechanics for the first level work well overall, though I had to restrain my impatient impulses to get through it... I'm not very good at stealth games I guess!
I couldn't figure out how to fight the first boss. Their blade attack seemed to reach me no matter what I did. At first I forgot about the dash move, but even dashing the blades would always reach me.
One other thing I'd like to see if you plan on updating this game is a little more "magical girl". Right now it feels like I could be anyone breaking out of jail. Maybe some magical effects or SFX, a clearer character design in game, or other details.
Still, this was a cool entry, and I do hope you continue progress on it! Great work!