At work, she's a renowned assassin. At home, she's a single mom to a teenage daughter. Killing? That's easy. It's parenting that's the hard part.

It's Goo Ra Ra's big day. Sun Woo Joon catches her off-guard with a memorable first encounter, moments before her world comes crashing down.

A dramatization of the events at Jangsari on September 15, 1950.

After a series of unfortunate events, Mok Hae-won quits her job in Seoul and goes back to Bookhyun Village, in Gangwon Province, where she briefly lived when she was in high school. There, she meets again her former classmate and neighbor, Im Eun-seob. He also came back to Bookhyun after leaving the village for a few years and now owns a bookstore.

Eun Dan Oh is a 17-year-old high-school student from a wealthy family who suffers from a lifelong heart condition that inevitably means she will not live past her teenage years. However, when Dan Oh realizes she is experiencing long gaps in her memory as well, she comes into the unhappy inheritance of another fact in her life: she is a character in a Korean webtoon and all of her actions are predetermined by the artist who draws her.

The stories of ambitious career women working at the top of the best portal sites in the IT industry. Paved with wins and losses, their road to success takes a new turn when love comes along the way.