The Fungus Brain Mushroom was initially cultivated for consumption to enhance the human brain. However, it was sealed away by Sakura due to its containment of a certain specific neurotoxin.
Yet, the Fungus Brain Mushroom also served its greatest purpose, as its mushroom body, resembling a brain, could carry a spirit, essentially acting as an external brain.
"For my own safety, I had no choice,"
Sakura muttered, finally making up her mind, a white glove materializing in her hand as she grabbed the Fungus Brain Mushroom, which softened instantly into a "brain."
It wasn't Sakura's application of chakra that caused it, but rather the very nature of the Fungus Brain Mushroom's body composed of countless mycelium, which, upon contact with other objects and sensing "danger," would rapidly disperse into mycelium, scattering in all directions to seize more opportunities to survive.
