Merciless

Read manhwa Merciless / 무자비하게도/ Mercilessly
‘Do Janggon’ is a human weapon and forcer special forces spy against North Korea.
When both of his arms got injured he was caught and brought to the ‘Daesan Welfare Center’, that abuses human rights and exploits labor.
The doctor said it would take him a month to fully recover. So he has to hold out in the welfare center until his arms are healed.