The twin brothers, the male lead and his twin brother, participate in a border military campaign, and the male lead's twin brother is killed in combat. The male lead's mother-in-law, to ally with the villainess's family power, forces the male lead to assume his older brother's identity and live with his sister-in-law Luna Bittencourt. When the female lead learns her husband has died, she is devastated and attempts suicide multiple times without success, until she accidentally hears news that her husband is not dead, and discovers he is now living with Luna Bittencourt using her brother's identity. Faced with the disappointment caused by the male lead's lie, the female lead loses all hope. When Prince Henry of Solar, the noble prince, proposes to her for the fourth time, the female lead finally accepts. During the period before she left the male lead's family, the male lead and his mother-in-law, to please Luna Bittencourt, mistreated her repeatedly: they not only demanded she use her own blood to perform a sacrifice at the ancestral temple to ensure the safety of the baby Luna Bittencourt was carrying, but also tolerated Luna Bittencourt intentionally setting fire to harm her. When Luna Bittencourt's scheme to broker official position sales is uncovered, the male lead even frames her to take the blame, leading to her imprisonment and torture. Though the male lead later releases her, this is not enough to erase her hatred. Instigated by Luna Bittencourt, the male lead's mother-in-law expels her f
