I recommend written by a friend. The protagonist is also a terminally ill patient.

Book Title: "I'm Really Not Weird"

Author: The fool among fools

Introduction: [Investigator Rule 1: Please do not leave your accommodation space unless necessary]

Gu Qingjiu looked at the "Investigator Rules" in his hand and nodded with satisfaction.

"I never thought that one day I, Gu Qingjiu, would be able to be treated like a protagonist."

Indescribable weirdness is mixed into all the worlds. Gu Qingjiu is walking among these weirdness with a flintlock gun.

"Gu Qingjiu...as an investigator, why do you want to eat me!"

"Gu Qingjiu is the real weirdo! We don't deserve it! We don't deserve it!"

Gu Qingjiu looked at the piece of blue flesh and blood on his hand and was silent for a while.

"?(ˉ﹃ˉ?)Of course because eating you can cure cancer!"

…

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Chapter completed!