Yeon-woo ends up in Seoul in the present time. She nearly drowns in a swimming pool, but she gets rescued by Tae-ha, who is the grandson of Chairman Kang of SH Group in 2023. Without understanding the current situation, Yeon-woo ends up becoming Tae-ha’s bride. Chairman Kang’s surgery gets delayed, so Tae-ha has to pretend to be married until Chairman Kang leaves for the US. Tae-ha suggests Yeon-woo to draw up a contract regarding their fake marriage.

Yeon-woo believes that she has found a way to go back to Joseon and heads to the pool where she first met Tae-ha in the 21st century. She soon gets caught by Tae-ha and happens to see a piece of painting from Joseon. With her knowledge of the old painting, she helps Tae-ha not to fall for Hye-suk’s scheme which could damage Tae-ha’s career.

Tae-min announces to the whole family that he’ll start working at the company, fighting against Tae-ha to be a successor. He also warns his mother that he hasn’t decided which side to take. Chairman Kang’s birthday is held, and Yeon-woo meets Tae-ha’s whole family, including his aunt. She also runs into Sa-wol, who got hired as the family's new housekeeper.

Hye-suk hands over another business proposal to Midam to make them decline Tae-ha's proposal. Furthermore, she uses Yeon-woo to raise the stakes about Tae-ha's marriage. Meanwhile, Yeon-woo wants to meet Chen-myung again to find the way back to Joseon.

Mi Dam decides to hire Yeon-woo as Midam’s guest designer after seeing her embroidery work. Through this, Yeon-woo gets to participate in SH Seoul’s first-anniversary event, which jars on Hye-suk’s nerves. Hye-suk lures Yeon-woo into the annexe of the family house, knowing Tae-ha hasn’t gotten over his trauma. Tae-ha runs into the annexe to save Yeon-woo, but his heart starts malfunctioning.

The company's biggest event of the year, the first-anniversary event, is just around the corner. However, someone leaks Yeon-woo's collection all over the internet and gets Tae-ha into trouble. Chairman Kang tells Tae-ha and Yeon-woo to give up on the project.

Tae-ha and the whole marketing team go on a vacation to Jeju Island. While Tae-ha is away, Hye-suk holds a general meeting to discuss Tae-ha’s dismissal due to his illness. Yeon-woo confesses her feelings for him, but Tae-ha tells him that they should end everything. Meanwhile, Sa-wol finds out that the Kang Family killed Yeon-woo.

Yeon-woo is devastated upon uncovering that Tae-ha's family from Joseon directly contributed to her demise. Meanwhile, amidst this turmoil, Hye-suk is determined to diminish Tae-ha's sway, but her efforts may have crossed a precarious line.

Ha-na reveals that she had been watching Tae-ha under Chairman Kang’s order. Tae-ha confronts his grandfather and finds out that it was him who killed Tae-ha’s mother. Yeon-woo sees Chairman Kang to ask him to apologize to Tae-ha if he truly loves him. Meanwhile, Mr. Hwang reveals his true identity to Chairman Kang.