Getting the little fungus back was absolutely everything Ren had needed.
With the tiny entity safely anchored back in its rightful corner of his mana system-space, reactive, humming with that quiet, steady presence Ren only ever realized he missed when it was violently ripped away, his entire internal world reorganized itself.
The intricate mana channels that had sputtered and ground against each other during the escape, operating with the agonizing friction of a machine missing a vital gear, seamlessly clicked back into place.
Instantly, his monstrous regeneration kicked in. It was a terrifying, unnatural advantage that fundamentally separated Ren from any conventional Tamer. His mana went into overdrive, rapidly repairing the microscopic internal damage at a blistering speed that no common healer could ever hope to replicate.
It didn't even take him a full twenty-four hours to return to his absolute one hundred percent.
