X-Men, still grieving over the death of Phoenix (Jean Grey), are investigating a case of a missing mutant girl in Northern Japan. This leads them to a mysterious virus that turns mutants into monsters. U-Men and the Inner Circle want it.

Toshiyuki Morikawaas Cyclops / Scott Summers (voice)
Kaori Yamagataas Emma Frost (voice)
Rikiya Koyamaas Wolverine / Logan (voice)
Hideyuki Tanakaas Beast / Hank McCoy (voice)
Aya Hisakawaas Storm / Ororo Munroe (voice)
Yukari Tamuraas Armor / Hisako Ichiki (voice)
Katsunosuke Horias Professor Charles Xavier (voice)
Warren Ellis