Prediction - I'm sure that ilwoo's goal was def to kill baekhee's dad (cuz baekhee's dad was prob the one who killed ilwoo's dad). But his cousins will prob find him before he reaches his goal. Chapter 36 showed us that ilwoo's cousins tracked down his transactions. So I think he'll have to leave the city, which is why he'll be separated from baekhee and won't be able to kill himself nor finish the "business" he had.
Prediction - I'm sure that ilwoo's goal was def to kill baekhee's dad (cuz baekhee's dad was prob the one who killed ilwoo's dad). But his cousins will prob find him before he reaches his goal. Chapter 36 showed us that ilwoo's cousins tracked down his transactions. So I think he'll have to leave the city, which is why he'll be separated from baekhee and won't be able to kill himself nor finish the "business" he had.