[All] Why do Dong-ju go through so many trials in the Good Boy drama?

ㅠㅠIt's really deep, but it's too deep

The villain Min Joo-young always escapes like a loach.

Still, I somehow managed to use my wit to launch a counterattack.

Dong-ju, who rolls and explodes every day, is about to regain his energy again, but at the last minute he is in danger of losing his sight...;;

There was already a foreshadowing before;

Could this really be your real name?

I think it must have been very difficult for Bogum to act.