After receiving a rare S-rank Boon, Grim must use her newfound ability to find out the truth behind her mysterious upbringing. After turning 18, Grim is eligible to receive a guided trip into an E-rank Gate World to unlock her first boon. Only after slaying enough magical creatures to roll for it, instead of the E-rank ability she's expecting, she gets... Hazel, the rare S rank boon, [FRIENDLY SHADOW]. She's an exact physical duplicate and immortal. Which would be amazing if Grim wasn't a small, anemic teenage girl with only one arm. The two of them will need to work together to survive in a world where the system is irreparably broken, the government watches your every move, and blood thirsty monsters come out of portals on the regular. But to find out why someone killed her family and erased her memory, she's going to need to do a lot more than survive. She's going to need to become a Boon Witch, individuals who use the remnants of the system to raid Gate Worlds for their untold riches. They're the defenders of Eternity City and the quickest way to become powerful... or dead. It won't be easy to find the secrets she's looking for, but she will stop at nothing to unravel the mysteries behind her unusual upbringing, and why the hell someone named a baby girl GRIM. Updates every M-W-F at 10:00 am EDT. 5+ chapters ahead on patreon.