He is willing to cover up for Jae - chan and to let him borrow his personal things , even his own car .
A senior prosecutor who became close and supportive to Jae - chan .
Jae - chan is willing to cover up for Jae - chan and to let Jae - chan borrow Jae - chan 's personal things , even his own car .
A senior prosecutor who became close and supportive to Jae - chan .