Oh Han-byul, a PR executive, worries about the return of her most important yet irritating client, Gong Tae-sung.

Han-byul is bothered by Tae-sung's presence at the office; Han-byul's past catches up with her when a new employee ends up making a mistake.

A picture of Tae-sung and Han-byul from their university days is revealed to the public and rumours about their relationship start to spread; at a fan signing event, a worried Han-byul runs to Tae-sung to calm him down.

An embarrassing video of Han-byul goes viral, which worries her; Tae-sung loses his cool with his new manager and Han-byul tries everything possible to set things right.

Tae-sung gets jealous when he sees Han-byul with Soo-hyuk and does everything to get her attention; a rumour about Tae-sung breaks out and Han-byeol tries to prove it wrong; Ki-peum receives a text from an actor.

Han-byul feels confused about her feelings for Tae-sung; a romantic scandal involving Tae-sung and Da-hye catches the media's attention; Soo-hyuk attempts to get closer to Han-byul; Tae-sung confesses to Han-byul.