If an assassin couldn't even assassinate an opponent of the same level, they would essentially be mostly useless.
And Miss Grey Green was the exact opposite.
Her profession within this system didn't emphasize stealth abilities but rather specialized in particularly strong burst damage.
Instead of calling her an assassin, it would be more accurate to say she was an agile-type warrior with strong mobility and temporary invisibility abilities, inherently converting physical damage to poison damage.
"Miss Grey Green" had many identities. Her main responsibility was to handle the Lohar Society's gray-area businesses, such as debt collection, mediating disputes between gangs, and besides that, running casinos and nightclubs. Beyond that, she was also a street vendor selling sheep offal soup.
When players were not in a "well-fed" state after eating, they could get a free bowl of sheep offal soup from "Grey Green" once a day after speaking with her.