are his parents dead or something??? why aren't they doing anything about this old man?

wait im so confused i havent read this manga in a while, i thought that was the father??? who the fuck is he the other guy what??? and what does he even what hello??

The parents are not dead, taesung dad and mom know the situation they talked to the grandpa and grandma which died was protect taesung to, his mom landed in the Hospital so now its only his dad to help them out.