* Vol-Tekka is a reference Morikawa Toshiyuki, a very prolific seiyuu. In his debut role as D-Boy, lead character of Space Knight Tekkaman Blade, he had to scream out the special attack name, "VOL-TEKKA!!" He not only made it convincingly loud, but destructively so - his shouting broke the recording studio microphone on two separate occasions!
The persona in question resembles D-Boy's Tekkaman Blade form. As to why these two are connected... same voice actor, maybe? I didn't watch season 2 after two episodes into Endless Eight, and I haven't bothered with any drama CDs, so I dunno if the Student Council President ever even gets a speaking role.