Chu Changyuan, the eldest legitimate son of the Chu family who has been separated for many years, follows his master's orders to return home acting foolish to observe human hearts. Even when misunderstood by his parents and despised by others, he still harbors kindness, silently protects his sisters, and resolves heavy crises. As the truth is uncovered, Chu Changyuan awakens his power and punishes the wicked. Facing his parents who owe him, he chooses tolerance and letting go. With family members standing by each other with one heart, he comprehends that the meaning of being powerful is protecting what one loves. Sticking to his original heart and kindness, he ultimately harvests a warm and complete life.