Episode One - The Ocean's Call, Pt.1

Earth, Japan, Tokyo, February 2026. The assassin Johnny Black attacked Kazuto Kirigiya, and left the former Black Swordsman in a coma, with brain damage...

So, how exactly did he disappear from a hospital bed, under 24 hour supervision?

Even with all minds on the case, the former SAO players hit a dead end, until one night, when a random call changes everything they have and will ever know...