-Attack: The heir of an aristocratic family who was born to be no more than twenty-five years old. He has a very bad fate and is very hostile to relatives and friends.
-Shou: A "substitute" who was secretly raised since childhood. He was born to defend the enemy against disasters and to die for the attacker.
Ever since he was sensible, Shou's only mission has been to love him, protect him, and finally die for him. The two young men met and truly fell in love with each other. Gong didn't know that Shou was a surrogate, and Shou didn't dare to tell him. Gong desperately wanted to protect Shou for the rest of his life, but Shou could only push himself to death step by step.
Ending: He died at the youngest age while being replaced. He lived a long life and did not know why he lived or why he died for the rest of his life.
Purpose: Cherish the people around you