The Leader of the Demon Sect Has Perfected His Merits and Ascended to the Throne?

[Anti-routine + Fantasy imagination + Cool writing + System + Easy and funny] Merit system binding error, request to change host. "If you don't change! I will be a good person in this devil's den!" When I woke up the next day, I found that my merits had inexplicably increased dramatically and I was ranked among the immortals...