Thanks for the explanation and finding the page where we discussed 済む
This is hopefully gonna be my last question for this chapter;
Yuusei goes to a store in order to find the origin of a business card. He shows the business card to a man up front and says
「この店どこにもの載ってなくて」
"This store isn't (something) anywhere else" [What does 載る mean here?]
「探すのに苦労したぜ」
"I had a hard time looking for it"
I'm stumped.
Edit-- One more question;
Yuusei realizes the man working at the bar is the hit man who broke his arm (Nakatou).
Nakatou; 「何の用だ」
"What do you want?"
「あの時の復讐か それともわざわざうちに飲みに来た のか？」
"Revenge for that time or did you just come here for a drink?"
Yuusei; 「あんた殺し屋だろ？」
You're an assassin, right?
Nakatou; 「だったら なんだってんだクソガキ？」
"If I am then what are you gonna do(?) brat?" [This is the line I'm having trouble with. What is he asking?]
Sorry for the edit.