I really loved the art style, especially the Monday dress. Is there going to be a different dress every day?
Your story shows a great sense of humor as well, I really liked the inner dialogue and would love to even see more mundane scenes in between the magical girl job.
The controls for the very first fight scene weren't difficult to figure out, but I was afraid at first that my game had frozen or something. Even a prompt to fight might be helpful?
I really enjoyed all the choices on the second day, where choosing to fight them all at once or which floor to pick would give you a different ending, and I ended up playing through a couple of times to see what was different. I liked that taking the lavender at the beginning ended up having an effect right away! I would've liked to have more of a change to have dialogue with the other magical girls before or after the battle though, even just to see if everyone is working under the same circumstances (paying off debt) or if there are people with more altruistic reasons, or anything like that.
I'm looking forward to your next update and finding out more about your magical girls!