As Soon as I Passed Through Tokyo, I Was Picked up by a Butterfly Ninja

The identity contrast is huge: I thought I was living under someone else's roof, but in fact I was the only normal person in the family. I thought that the [Jikaku Ghost Killing System] I awakened was the hope of the whole village. As a result, not only did I have to guard against evil spirits, but I also had to hide it from my roommate who practiced knife training crazily in the middle of the night every day! Scene 1: Night practice in the yard. I waved the stick a hundred times and finally condensed the lightning. Unexpected result: The stick exploded, waking people on the second floor. Butterfly Ninja (raised eyebrows): "Why are you so crazy looking at the air in the middle of the night?" Scene 2: Cleaning up the loot. I killed a ghost in the alley and prepared to destroy the body and eliminate all traces. Result: I ran into a Butterfly Ninja holding a short sword who had also just killed a demon. Butterfly Ninja's reaction: (eyes narrowed) "Are you here to take out the trash too?" Scene 3: A desperate situation of life and death breaks out. Finally, a superior evil spirit came to my house and I stopped pretending to show off! I exploded with anger, and I flashed with thunderbolt! Unexpected result: Two sword lights that were a hundred times more terrifying than me were the first to tear the evil ghost apart. The villain's reaction: "No, who is eating whom?!" Everyone: "..." From then on, the label of weak and beautiful girls was completely insulated from them. Looking at the broken ghost and then at the smiling sisters, I swallowed. Result: I became the one holding my thighs, and I could only maintain my false dignity by cooking twice-cooked pork every day!