I could beat up that little bitch monster. If that monster came up to me like that I'd grab it's head and neck and piledrive it's head into the rock . As if some 130 lb , unarmed, scrawny , humanoid, bitch monster is going to kill me coming straight up to me like that.
In fact, if a monster like that put me in a self-defence situation, after knocking it unconscious I might just violate it in order to teach it respect.
btw it's quite an interesting idea to have half an introductory chapter then just skip straight to the action. I guess other manga either need to have a very long first chapter to cram the intro, or they need to have some short scenes of the monster attacking other characters before the main characters come across it. manga magazine readers often want something to hook them within the first chapter or two so this is a good way to go about it, and they can always tell us the rest of the introduction later.