|Aliases||Alex, アレク, Alexandru Pastenr, Alexander Pastener|
|Visual novels||Protagonist - Apocripha/0 Alex Disk|
Protagonist - Apocripha/0 FANBOX Happiness Cage
Main character - Apocripha/0 Platina Disk
|Voiced by||Takagi Motoki|
Alex is the first prince of Hell (Naraku), the elder twin born from the right red eye of the King of Hell. He is to fight Platina to the death over the succession of Naraku. He doesn't really know Platina and has a lot of conflict over having to fight, especially as he is initially weaker than his brother. He is a bit selfish with a short temper if he doesn't get his way, but behind this lies a deep and caring attitude.