After the "Another" incidents which sent Den City into a panic, one of the masterminds behind the plot, Baila, one of Hanoi's Three Knights, was sent to a detention facility and imprisoned. There, while under strict surveillance, she is visited by a certain man...
But when he enters LINK VRAINS, he 
transforms into a hero that crushes evil!
Doch, wenn er LINK VRAINS betritt,
Pero en LINK VRAINS, ¡se transforma
en un héroe que aplasta al mal!
Mas quando ele entra na Link VRAINS,
se transforma num herói que esmaga o mal!