After dying in an accident in the modern world, Lin Yu was reborn in the womb in ancient times and became the young master of a marquis's household. Bright and clever from childhood, he met a mysterious young man named Su Jin while studying at school, and the two gradually became friends.
As they spent more time together, Lin Yu developed special feelings for Su Jin. Su Jin confessed his feelings to Lin Yu, and the two began a secret relationship. But when their families discovered the romance, they strongly opposed it, and the two were forced apart.
Still, they refused to give up. They worked hard and earned merit for their families, gradually softening their families' attitudes. But new troubles kept arising, with rumors spreading and crises cropping up everywhere. They faced them together, exposed the mastermind behind it all, and finally won their families' approval as they began preparing for their wedding.
On the eve of their wedding, disaster struck again. They saw through the plot and resolved it, then held their wedding as planned. They had only enjoyed a short time of married bliss when war broke out on the frontier. Su Jin volunteered to go to battle, while Lin Yu supported him from the rear. Su Jin distinguished himself on the battlefield and returned to the capital, only to become embroiled in courtly power struggles. The two decided to resign from office and retire to seclusion.
After retiring, they settled into a pastoral life. When an epidemic struck the area, they treated the people and found an effective remedy, earning widespread acclaim.