Yuito and Nagi are inducted into the Scarlet Guardians and meet their team members, each with their own psionic power. Soon after, they join the battle against invading mutants known as Others, but could there be more to the invasion than meets the eye?

As Karen's revolt gathers steam, Yuito and forces loyal to New Himuka are hard-pressed. Fubuki takes command of a band of loyalists and orders Yuito to check that his father is safe. Karen publically reveals a motive, and Yuito has a shocking encounter.