Dream Hunter

The ordinary yet not so ordinary detective, Wen Wen, woke up in a mental hospital and discovered that his right hand was connected to a mysterious space called the 'Catastrophe Containment Facility,' from which he could acquire the powers of the monsters imprisoned within!
By capturing a vampire, he gained a formidable physique;
By capturing a ghost, he could turn invisible and pass through walls;
By capturing a fox spirit, he could charm the opposite sex...
In short, in order to obtain more powerful abilities, Wen Wen began to diligently capture monsters, thereby stepping into the strange world of superpowers and seeing the hidden truths behind the curtain...
...
PS1: Inspiration partly comes from the Cthulhu Mythos and the SCP Foundation, but I'm only borrowing some elements, not a direct copy, and I hope everyone likes it.

Catastrophe Containment Facility

After Wen Wen severed the connection, the White Hat Black Giant's control over other parts of its body was no longer as strong as before. Now, the other parts have already surrendered, and it had no meaning to persist.


But just as its knees bent, an invisible force descended from the sky, landing on the White Hat Black Giant. The muscles on its faceless visage squirmed and revealed an expression of extreme fear.


No matter how terrified it was, its body still collapsed into ashes under that force.


The force sought to spread to the other Black Giants, but as Wen Wen had already severed the connection between the Black Giants, the force retreated back into the void after searching to no avail.


"This is... the Power of the Contract! This Slanda Ghost Shadow actually signed such a strong contract?" Wen Wen circled the pile of ashes, clicking his tongue in wonder.


Now he understood why the White Hat Black Giant insisted on attacking him even after he demonstrated his strength.


Chapter 899 Slanda Ghost Shadow