Shin Ryujin's clock is ticking away, inching closer to its demise. Or at least, that was the plan, until Hwang Yeji arrived to change the course of her history.

Two Radio show hosts admire each other from afar, until the opportunity strikes and Hwang Yeji boldly makes a request live.

Out of all the people in the band, the two that have the most chemistry are the bassist, Hwang Yeji, and the drummer, Shin Ryujin. To Yuna, however, this was most suspicious, like the two had history that none of them were willing to disclose.

Shin Ryujin receives an unsigned love letter, but she knows exactly who it is from.

Hwang Yeji's friends hated that skater girl, Shin Ryujin. But Yeji couldn't say it with her heart.

To Ryujin, Hwang Yeji is a soft looking, peace-loving woman. Until...

Shin Ryujin is irremediable, incorregible and somehow incredibly irresistible, while Hwang Yeji was a goody two-shoes, too pure and too lovely to hate. Like oil and water, like hot and cold, like Betty and Veronica, they both seemed to repel each other -- and yet their undenying attraction and chemistry somehow made the sparks happen the moment they were close to each other.

Shin Ryujin, a hitman, has made the mistake to fall for another human named Yeji, the gorgeous baker at Sun's Bakery. And that changes everything.