Herbalist Wren unexpectedly conceives twins, Tom and Song, with Shawn Lillian. While investigating a six-year-old secret, Wren reunites with Shawn—only for Monica Shee to appear with a girl named Lily, claiming she's Shawn's daughter. But the twins Tom and Lily share a mysterious bond. Together, they expose the villains, leading to a heartwarming reunion of the family of four.