Is there any fantasy novel recommendation similar to I am the only one?

The sword of the eternal third young master

The protagonist has crossed into the world of repairing truth, which is a chaotic, sinister and boundless environment, and only a few local terrans covered by positive films can survive.

Is the protagonist struggling in such a world? It is treacherous and dangerous to join the clan to practice the immortal method.

In order to improve their strength quickly, people who have strayed into Fu You (a strange and desperate world) have become Fu You's puppets. The more they kill, the faster their strength will improve (after killing, part of their vitality will be absorbed by Fu You and fed back to the protagonist).

The more people you kill, the deeper you get.

If you don't kill people, you will have hallucinations (the price of the underworld). Life is worse than death, living without knowing the truth and living illusory.

People affected by the underworld are called "mystification"

But in order to survive, for strength, the protagonist can't get rid of it, he can only struggle, and then he becomes possessed.

Known as "Red Flower Demonbane"

Seeking truth in a secluded mansion, I met a madman who drank all day. This man is very terrible, and he is called "the sword of Third Young Master Hongye".

There is only a little time to stay awake every day. Several peerless masters who are as magical as the protagonist can't hold on for a few rounds in the hands of the "Sword of Third Young Master Hongye", and they are eaten alive by the crazy "Sword of Third Young Master Hongye"

Such a top figure is also influenced by Fu You.

When "The Sword of Young Master Hongye" was awake several times, he helped the protagonist through the mystery many times.

In this way, the protagonist struggles in the realm of repairing truth and secluded house at the same time, seeking a solution, just for survival.