For other versions of this character see:
Bllan resembled a humanoid covered in a thick layer of drooping slime, he had two tentacles in place of his eyes.
The first time Bllan is seen he is amongst the many demons envisioned in the flashback to the Cretaceous era as Ryo Asuka explained the origins of the demon race to his best friend Akira Fudo.
Later on after Sirene had been badly wounded in a fight with Akira, she begs to Zennon for help, he responds and sends down a group of demons including Bllan. He attempts to attack Akira but quickly gets himself decapitated.