Li Qi, a transmigrator also known as Vertin, awakens in another world where steam and arcana intertwine, carrying a mysterious notebook capable of rewriting the laws of the world. Hunted by a secretive cult, he is forced to work with dangerous and captivating supernaturals. Some want to use him, others want him dead, and he himself may be the greatest wild card of all.
When steel clashes with magic, who will command the ultimate truth?