After binding to a System and transmigrating into the world of Demon Slayer, I took the alias Sheng and used the System's shop to make a killing from Kagaya Ubuyashiki right from the start, taking one hundred billion from him.
I exchanged for the bloodline of the Washu Main Family from Tokyo Ghoul and went from an ordinary person to a land-based killing machine.
To get stronger, Sheng made a deal with the Demon King Muzan, extorting one billion from him for premium sunscreen that cost only ten yuan to make.
I exchanged for the physique of the Hero Who Rises and gained the ability to help others break through their limits.
But after getting the sunscreen, Muzan thought he was completely invincible. He immediately betrayed Sheng and tried to kill him.
What he didn't know was that, through one transaction after another, Sheng had already obtained the Hero Who Rises' “optimization,” Sung Jinwoo's “Ruler's Hand,” and Yoriichi Tsugikuni's “Sun Breathing.”
Meanwhile, the Demon Slayer Corps grew stronger and stronger thanks to Kagaya Ubuyashiki's relentless trading.
Now he was ready to sell off his entire estate and offer three hundred billion as a bargaining chip to get even deadlier items from Sheng, so he could wipe out Muzan once and for all…
I helped Kagaya break his thousand-year curse.
Shinobu Kocho asked me to help her overcome her physically frail body so she could kill Doma with her own hands.
With my help, Kokushibo became a ghoul who could withstand sunlight.
He reclaimed the name he once had and continued pursuing a martial path that could surpass Yoriichi's.
But my story is far from over. This time, I'm heading to the world of Tokyo Ghoul ahead of schedule.
There, I'll lay out a grand plan, grant Kichimura Washu an SSS-rank kakuhou, and win over the Aogiri Tree's leader, Eto Yoshimura.
I'll have them help me earn the bargaining chips I need to become a top-tier powerhouse…
Can your own novel not be good enough?
The whole process is online, especially the battle scenes are very enjoyable [Thoughts]