Saving All Worlds: I, the Dragon Slayer, Awakened the Dragon Cancer System

The first time, I transmigrated into the legendary dragon slayer Siegfried and successfully completed the great deed of slaying a dragon...

I even awakened a golden finger of my own. Three joys piled on top of one another, bringing even more happiness. I should have enjoyed a dreamlike stretch of bliss, so why did things turn out like this?

I transmigrated into the dragon slayer Siegfried and awakened the Dragon Obsession System, which lets me draw packs to obtain all kinds of dragon-related items and skills from the Myriad Worlds.

But at the same time, I was chosen by the will of the myriad realms and began a journey to save the heavens.

"Tell me, how did I, a perfectly respectable dragon slayer, become the Demon Destroyer in the mouths of those reincarnators and abyssal creatures?"

This book is also known as: I, Siegfried the Dragon Obsession Patient

The synopsis does it no justice. Read the main story.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.