You might like one of these: Warlock of the Magus World Upgrade Specialist in Another World Renegade Immortal Reverend Insanity The Skyrider
It depends on what you really want. If you want more of demonic aspect: Try Er Gen's novels: Renegade Immortal, Pursuit of the Truth, ISSTH and AWE. Note. Pursuit of the Truth is serious novel. I see a lot of people complaining about it because it is not standard "dumb lucky MC + pokemon/harem". Some stand alone novels: Grasping Evil, Reverend Insanity, Warlock of the Magus World. If you want system more similar to the 2nd half of novel, try Carefree Path of Dreams.
i am looking for something similar to way of the devilltoo. I have read hundrewds of CN novels, very few come even close to it in complexity and consistency.
Yeah its kinda hard to find anything remotely close to it he actually has to work and has a straight system to his power up where conditions have to be met on top of having resources even then its iffy even if he can go all out that he can beat everyone which is the best part
Try Lord of the Mysteries it has less hulk smash and is in steampunk setting instead of ancient china, they are pretty similar except it doesn’t focus as much on the horror setting while at the same time the author never makes it comedic like in Way of the Devil when ghosts/demoms start fleeing in terror from the MC fairy early on