The Heaven-Slaying Demon Lord, who is famous in all worlds, went wrong when he was forced to ascend, and was bound to the most traditional "merit-based sanctification system" in the fairy world. The core command of the system: do one good deed every day and accumulate merit, then you can reshape your immortal body and rank in the immortal class. As a result, the demon king with a sea of blood began to help an old lady cross the road every day, help a lost spirit beast find its mother, and perform free maintenance on the enemy's mountain-protecting formation. Until one day, he discovered that the enemies he had "helped" actually began to sincerely provide him with longevity tablets, crying and begging him to "come again and give advice"... And the eyes of his nemesis, the Saint of the Immortal Sect, looked at him more and more wrong.