After Lin Guang obtained a role-playing System, he joined a chat group. Seeing all the familiar characters in the chat group, Lin Guang quietly registered several alt accounts, then began his behind-the-scenes scheming while wearing those alternate identities...
In the Campione! world, he masterminded a plan to replace the Last King with King Arthur and triggered the Incineration of Humanity.
In the Akame ga Kill! world, he used Kamui to sow confusion, revived as Qin Shi Huang, and completed the True Country of the Unified Wisdom of Humanity.
In Type-Moon, he built Academy City as Aleister, played the role of Crimson Moon, and got the Black and White Princesses to call him Mom.
In the High School DxD world, he became the ancestor of the seventy-two pure-blooded demon families under the name Solomon.
During the great war six thousand years before No Game No Life, he created the Blasphemous Tablets and completed the Path of Godhood.
The big shots in the chat group? Sorry, I'm just pretending!
This is the story of a man who goes by the name Crowley, holds to the belief that "all people are stars," and puts it into practice, while taking a nasty witch as his disciple and causing trouble everywhere with a bunch of strange chat group members.
PS: All the alt accounts in this book appear as clones. It also contains some of Aleister's theories and occultism. (You might not understand it if you aren't familiar with A Certain Magical Index.)