The disappearance of young Hisako Ichiki in northern Japan spurred her parents to seek assistance from Professor Charles Xavier. Recognizing the gravity of the situation, Xavier made the decision to assemble the X-Men, hoping their unique a…

An investigation draws the X-Men to the U-Men, a collective of deranged scientists. Within their hidden sanctuary lies a secret of truly horrifying proportions.

During a brutal clash between the X-Men and Todd, the U-Men’s deranged scientist, Hisako found her mutant abilities diminished. The intensity of the fight seemed to drain her strength.

A perilous situation unfolds for the X-Men when Blackbird is assailed by a creature resembling a bat, exhibiting alarming symptoms consistent with Damon-Hall Syndrome, thereby endangering the team with the possibility of secondary mutation.

Following Cyclops’s opposition to her joining the X-Men, Emma Frost permitted Professor Xavier to delve into her thoughts, to read the landscape of her mind and make her innermost feelings known.

After a sudden, emergency landing of the Blackbird, the X-Men are immediately beset by the lingering forces of the U-Men, and a fierce conflict erupts.

The victory over the U-Men led the X-Men to a stark encounter with Yui Sasaki. They found her at a hidden complex, a place once dedicated to educating young mutants.

Following the onset of Damon-Hall Syndrome, Riko and Kaga launch an assault on the X-Men’s headquarters, while Emma Frost observes a stranger in her crystalline form.

A series of unsettling truths surface: Riko and Kaga were victims of drugging orchestrated by Yui, and the identities of Jun and Mastermind are revealed to be inextricably linked.

The X-Men and the Four Pillars of the Inner Circle clash in a brutal conflict, thwarting the machinations of Mastermind.

Though Yui strained to contain them, Takeo’s abilities grew stronger with each passing day, warping the very fabric of reality around them.

Driven by a desperate urgency, the X-Men launch an assault on Takeo, Professor Xavier’s son, determined to prevent him from enacting a cataclysm that would extinguish both mutantkind and humanity itself.