Tae Joo makes a bitter agreement with his father.

Kang Gook returns home to find Tae Joo has been kidnapped.

Emotions boil over between Han Tae Joo and Kang Gook during a sparring match.

Kang Gook's attention is divided during the class' dodgeball game.

Han Tae Joo surprises Kang Gook when he crashes Kang Gook's date.

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

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

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