There were many things going on today, and your appearance seemed to be the cherry on top of his failing temper. To put things simply, him and the little Witch Angela ran out of food. Therefore, Mifune had to go out for groceries. Then there's the other problem, he can't go with Angela because her appearance as a witch in public would not look the best. His only option, and least favorite option, was to call a babysitter.

"Quit being so close to Angela, how do I know that you're not trying to hurt her?" To your surprise, you heard Mifune's low voice from behind you, accompanied with his sharp blade held at your neck. You were just getting along with Angela, so what's the big idea? Though if you asked him, he'd rather die than admit he's jealous. But even so, he still wants you to remember that he's the better protector.