After-hours paperwork isn’t the only thing heating up at BL Corporation.

From HR to R&D, Secretarial to Marketing, a group of college friends all find themselves working under the same roof—and tangled in office romances no one saw coming. Whether it’s a shy developer revealing an unexpected secret, a longtime friend pushing the boundaries of “just colleagues,” or a bold assistant making a move that’s way above their pay grade, each story proves that love in the workplace is rarely by the book. Four departments. Four love stories. One HR nightmare waiting to happen.

1-5. Backend Development (개발팀, Gaebal Team) [Dae Namueun & Samdukong]
6-10. Bedroom Strategy (마케팅팀, Marketing Team) [Dimang & Gugu]
11-15. First impressions (인사팀, Insa Team) [Dimang & Dansokgangaji]
16-23. My Kinda Boss (비서실, Biseosil) [Dimang & Jintae]

The Magic stick was created for one thing and one thing only…
Human reproduction.

Gong Hyochan’s world was turned upside down when he finally learned about his mother’s terminal diagnosis. After all, they had no one else but each other in this whole world. He had always taken his mother’s love for granted, but it was now too late to make amends. Or was it? A mysterious man approached him on his mother’s bedside, offering to give his mother a new life at the cost of his own lifespan. The desperate Hyochan made the deal and 50 year-old Yeon Geum-ok was given a second chance in life. The catch? She was now younger than her own son!

A dissatisfied married couple is given a second chance at love and are transported back in time to the day they met. Will they get back together or find new loves?