The transformation of Megacity X was not a silent affair. The city buzzed with the energy of change, its every corner whispering of the rebellion that had taken root. The Mycotectural Uprising had grown beyond the Spore Sowers, beyond Kai—it had become the city's own movement, a collective push towards a greener future.

The bio-bricks, once experimental, now formed the foundations of a new urban landscape. Buildings, infused with the life-giving properties of fungi, rose like monuments to the symbiotic relationship between humans and nature. They stood as testaments to the power of collective action, the enduring spirit of the Myco Architects.

Kai walked the streets of Megacity X, no longer just a scavenger but a pioneer of change. The green spaces that dotted the cityscape were vibrant with life, a stark contrast to the sterile environment that had once defined the city. The fungi had woven a network of life through the urban fabric, creating an interwoven ecosystem where concrete and greenery coexisted.

The Spore Sowers, their identities still hidden from the authorities, continued their work with a sense of cautious optimism. They educated the population, sharing the knowledge of Mycology that had been locked away in the biodome's archive. With each lesson, they planted the seeds of understanding, nurturing a new generation of Myco Architects.

Megacity X, once a monolithic concrete jungle, was reborn. The fungal growths, once seen as a threat, were now celebrated as catalysts for change. The city breathed easier, its air cleaner, its soil richer, thanks to the efforts of Kai and his allies.

The Myco Architects had set in motion a movement that would continue to grow, to evolve, and to inspire. Megacity X was a testament to the potential of Mycology, a beacon of hope for a future where humans and fungi could thrive together in a thriving urban ecosystem.