"The second type of monsters on the island are of a lower level, like the three-handed ones I saw not long ago. They can't conceal themselves; they can only modify my perception through mental invasion."
"I must reject the second type of monsters, but contain the first type. Because bullets can't kill monsters that aren't in a concealed state, they can only kill monsters disguised as humans."
"So, the owner of that house might be a mage... responsible for the second type of monsters, those that can't stealthily hide."
"In other words, there might still be four guests here..."
"I currently have three bullets, enough to deter three people, but if my bullets run low and the number of people in the house increases... then without a doubt, my position will be quite passive."
"I still don't know the 'specific conditions' for the gourmand, the doctor, the vagabond, and the deliveryman. Firing a shot now... might not be wise."
