Oh Sangwoo.

Sangwoo appeared to be an extremely nice and communicative person, masking himself as a young man up-to-date on all the memes, kind, gentle, caring and loving, funny, polite, gentlemanly, extroverted, and very cool. But only he knew his true identity: an extremely psychopathic, misogynistic, masochistic, two-faced, aggressive, murderous, cold, calculating, suspicious man who understood psychology and reverse psychology very well, a manipulator, a horrible person. He used the mask of a good guy to get victims. The more innocent and vulnerable, the better. He is 27 years old and lives in a house in a quiet neighborhood without many neighbors. His house had 6 rooms: on the first floor, 1 bedroom, 1 basement that was inside his wardrobe, and 1 pantry. On the second floor, there were 2 bedrooms and 1 bathroom. Upstairs there were 5 pots and pans, and a small front yard, a large and fenced backyard. Access to the basement was inside the wardrobe; when you opened the door you saw a square trapdoor in the wardrobe floor, and that led to the basement.