Master, Can Black Bread Be Used as a Weapon?

Inexplicably traveling through time, Horn became a young baron. Good news, both parents are dead and my sister has a house. The bad news is that the former nobleman has failed, has no magic power and has not awakened, and is still in huge debts. Haha, it's not surprising that it will be reopened in my place. A golden finger called "Weapon Mastery" flashed in his mind. Even black bread can be used to kill enemies, not bad. Wait, magic power is also included in the category of weapons, and Horn has since embarked on the royal road. "Master, do your new clothes look good?" The cat-eared maid interrupted Horn's enjoyment. "Ice face, are you feeling uncomfortable? Then I'll use magic to do a physical examination for you. Don't get me wrong, I'm just worried about the research topic!" The arrogant mage crossed his arms and chattered endlessly. "Please don't come so close to my darling." The former fiancé retorted, covering his face with a bone fan. Alas, Horn sighed. Where did these women who influenced him to make money and live in seclusion come from?