breast binding + water magic shaping to look male? ok...seems like a horrible idea to me. breast binding alone, maybe you have an off shape but you can pass for a while. but with the water magic in there, the first time you run yourself dry it collapses and everyone wonders why your whole body shape is suddenly changed. or you can just get gut punched by a MC so hard your magic breaks mid fight then stripped like this idiot girl
Also I just don’t understand why people just abandoning one magic style just because it’s inefficient. They could do lots of research to improve it but there’s no one researching it (or maybe there is one?) on that school. Even the principal only knew the basic principle.