A World Where Magic and Weapons Coexist

This is a fantasy novel from a first-person perspective. The protagonist is myself. Regarding magic, who says that the magic that continues from ancient times to this day is the strongest. If that's the case, it's enough to pick up people's wisdom, so why study magic so hard. If we don't introduce the old and bring forth the new, how can we become stronger from generation to generation? The magical path I want to take is a path that no one has ever walked. Regarding feelings, I know what I should do. As for your routines, keep them for yourself. I'm just cowardly, what's wrong? If anyone dares to flirt with her behind my back, I will slap him to death. Regarding the master, this old guy is too stupid and I don't want to mention him. Regarding brothers, no matter where we are in the world, no matter how long we haven't seen each other, my brothers will always be brothers... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.