My Pint-Sized Husband

After wishing for a perfect husband at her Great-Grandma's grave, Seraphina Whitman is unexpectedly transported into a novel, becoming the villainess who abuses the male lead's adopted son. To change the body's original owner's fate, she starts trying to win over her adopted son, Aiden Valerius, but stumbles upon the male lead, Caspian Valerius, who has turned into a child due to Gu-poison. Unaware of his true identity, Seraphina Whitman freely teases the "little dumpling," while Caspian Valerius is a child by day and an adult by night. By a twist of fate, the two end up sharing a bed, and romantic feelings begin to blossom. Lila Jennings (the original novel's female lead) sows discord, encouraging Aiden Valerius to misbehave and framing Seraphina Whitman for poisoning. Although Caspian Valerius appears cold on the surface, he secretly helps her multiple times. When Seraphina Whitman is framed, he finally steps forward to expose the truth. As the Gu-poison is cured, their feelings for each other deepen. They move from testing one another to genuine affection, joining hands to fight against the villains and rebuild a happy family.