North American Wizards Start By Opening Black Clinics

Roger's clients are mainly outlaws, and his medical fees are usually settled with bullets. His neighbor next door either sells stolen goods or lends money.
However, he can see the corrupted soul floating out of the wound, and can use it to enchant items.
The beacon of freedom has never lacked pain, and corrupt souls are all over the earth.
So Roger opened a clinic to treat the injured while disposing of unclaimed corpses, quickly accumulating corrupted souls.
Enchant the window [Indestructible] so that even RPG can’t break it.
Enchant the car [overtaking in corners], and all the police in the City can only eat its exhaust.
Enchant your eyes with [Eye of Insight], and the world in your eyes will change.
He saw the hidden information in all things, the conditions of patients, ancient relics, and even the methods to crack evil spirits and devils, all were revealed in Roger's eyes.
And when Roger enchanted a fragment of an ancient wizard, the world of wizards also opened the door to him.
This book is also known as: "The Last Wizard in North America", "I Fight Gundam in North America", "People in the United States Started to Practice Medicine Without a License"