A skilled hacker, Jin Kang, falls into a broker's trap and fails his mission. Barely escaping with his life, he can't bring himself to face VX, a genius hacker and team member he greatly respects.

Instead, Jin Kang chooses to go into hiding. By day, he works at a café, while at night, he quietly plots his revenge.

However, his routine takes an unexpected twist when a mysterious and striking customer, Seo Yiyeon, enters the café and makes bold advances toward him. Baffled by Yiyeon's unexpected attention, Jin Kang now finds his plans starting to go awry...