神秘公寓特别篇：光之吸血鬼与黑暗之子

On the day the exorcist organization Aegis headquarters was attacked by vampires, 'Rion' witnessed a familiar figure. Defying even his captain's order to stay out of the incident, he chases after that person... Meanwhile, 'Kangrim', 'Ian', and 'Shinbi' join forces to stop the evil vampire 'Barrow's scheme. But for some reason, Rion stands in their way. And then, truths begin to surface. To protect what is precious, Rion must confront his past self and awaken his true power!