Becoming an Immortal in a Coffin

[No heroine + no knife + crazy batch + high energy throughout] Rumor has it that there is a mausoleum in the world with a coffin of ghosts and immortals inside. As long as a person lives in a ghost-immortal coffin, he can become an immortal. Zhang Buxiang has been searching for the immortal for ten years, and finally found the tomb and put himself in the coffin...