As the son of the head of TB Group, Tae Joo has been assigned a bodyguard named Gang Gook.  To keep his connection to TB Group a secret, Gang Gook and Tae Joo act as friends as opposed to bodyguard and employer.

Tae Joo is injured in a sparring match with Gang Gook.

Han Tae Joo helps Gang Gook practice for an upcoming date.