Cisco is a nerd. No surprise there. He loves reading comics almost as much as he loves re-watching Star Wars and forever arguing that Han shot first, because there’s no other reasonable explanation.
His favorite comics are ones that feature the super cousins, Superman & Supergirl. He’s dumbfounded when he meets Supergirl for the first time, and can’t actually believe that she’s real. She will forever be his favorite of the cousins, and is proud to know Kara.
He tries to convince other followers of the comics that Supergirl is, in fact, real, but nobody believes him. He even jumps through a few hoops, managing to get a selfie with a blur of Supergirl flying in the background.
People continue to doubt him, but Cisco is determined to show these people the truth. Supergirl is real.
Cisco backup 