After obtaining the Shining Unicorn and inheriting his father's research, Axiang accidentally discovered the mystery of the ancient Mega evolution during his journey to the Kanto region. This ancient power that was rediscovered in the Kalos region actually has deep historical roots in the Kanto region, and is mysteriously connected to the Shiny Pokémon phenomenon.
As the journey progresses, Axiang not only needs to collect eight gym badges and challenge the Pokémon League, but also needs to find Key stones and Mega stones scattered throughout Kanto, and unravel the record of "the correlation between Mega evolution and the rainbow phenomenon" in his father's research notes.
The real goal of the mysterious organization "Spiral Eye" has gradually emerged - they are trying to control the power of Mega evolution and create artificial Mega evolution weapons. Axiang must work with his partners to protect this ancient power of bond and prevent it from being abused.
