Answer : this story pacing is like that kind of short manhwa which left many to imagination, and more focusing on to the dinamic like it "serial killer with misterious background X bullied somehow rich highschoolers" and once they together the story end, its like many sequel of an artist ocs you can find many on twitter this kind of story, like the special and the extra add in the chapters. There is also many artist who do their ocs collab, and do many story with their characters and many others
minor lived alone? well its same as me i lived alone cuz my parents divorced they just sent me my monthly allowance ,some groceries and school tuition, 1 more year im graduating senior :)
The most unrealistic parts of the story is that 1. He is a serial killer and just gets away with all the crimes he has committed. Like not even one case? 2. How does a minor live alone?