When adventurers raided his mushroom patch seeking riches, Linden unleashed a deceptive pale blue specimen among the harmless gray caps. The raiders collapsed in poisoned delirium, rescued moments before becoming monster feed by a passing party. "What befell them?" questioned the captain. "They consumed mushrooms without proper tribute," came the weary reply. "Outsiders never learn." — Summoned as a hero by unknown forces, Linden's consciousness awakened trapped in a mushroom's form, imprisoned in the dungeon's depths alongside ravenous monsters. His only solace: a legendary hero's ability to harvest skills from decomposing corpses. Determined to reclaim sunlight, Linden cultivated an expanding fungal kingdom within the darkness, methodically converting the dungeon into his domain before launching an invasion of the surface world above.