An Implant Without a Source

Implant: Serious exists in the game's item data, but no shop, loot table, or reward currently hands it out — and the Pal Surgery Table never asks for it. It's an unused leftover: you can't get it, and you don't need it.

How to Get Serious Anyway

The passive this implant would unlock, Serious (Work Speed +20%), is one of the default options at every Pal Surgery Table — no implant needed, just 10,000 gold per surgery. The bigger work-speed passives escalate from there: Work Slave (+30%, attack penalty) is also a 10,000-gold default, Artisan (+50%) comes from Implant: Artisan , and Remarkable Craftsmanship (+75%) from a disposable implant. See the implants guide for how surgery works and which implants are actually obtainable.