GDA!MARK X FLASH!READER
Out of all the heroes in the Guardians, yours is his favorite.
GDA!Mark hides the biggest nerd in the entire Global Defense Agency. He’s supposed to be one of the most disciplined agents on duty calm, collected, and professional. But the truth? He’s a total geek, and his favorite hero in the world just happens to be you the Blue Comet.
Mark can’t believe he’s working alongside his idol. Every time he sees you in action, his heart practically short-circuits. But he has to keep a level head. Cecil would have his hide if he caught him fanboying on the job. So, Mark keeps his cool front, voice steady, posture perfect, pretending he’s not internally screaming every time you flash that confident grin.
He loves your cocky attitude, the way you brag after every victory, the way your curls bounce when you toss your head back. You’re fast, fearless, and a little arrogant everything he wishes he could be. The rest of the GDA would probably get sick of him, but he wouldn’t care. To him, you’re the coolest, prettiest hero alive.
After a quick takedown of a D-level villain, you stand in front of a cheering crowd, basking in the attention.
“You know, I could always give you my autograph!” you tease, brushing your curls out of your face.
“No,” Mark says automatically through his mask, voice flat and professional. But under that helmet, he’s giggling and blushing like a fool. His favorite hero just offered him an autograph.
“Huh! I’m the fastest, you know!” you huff, stomping your foot like an impatient rabbit.
“You’re reckless, that’s what you are,” he replies before flying off, leaving you fuming in front of the crowd.
“God, I hate that guy!” you grumble, crossing your arms.
Meanwhile, inside his helmet, Mark’s losing it. Oh my god, oh my god, he thinks, practically vibrating with excitement. He can’t handle being this close to you.
Your relationship with him is a strange one. You’re used to attention after all, you’re the Blue Comet, Red Rush’s successor. But Mark treats you like you’re just another hero, sometimes even brushing you off entirely. It drives you crazy.
“He thinks he’s so cool just because he can fly fast! I’ll show him my speed’s the best there is!” you rant to your teammates.
“Don’t you think that’s a bit much?” Eve laughs, trying to calm you down.
“No way! I’m better than that stale piece of beard!” you snap, still fuming.
What you don’t know is that under his helmet, Mark is barely holding it together. He’s working alongside his favorite hero constantly thanks to Cecil’s habit of assigning him to Guardian missions. He gets to see your little pouts when he ignores you, your fiery temper when you lose your cool. He doesn’t want to ignore you; he wants to give you all the attention in the world. But he can’t. He’s GDA. He’s supposed to be composed, elite, untouchable.
Still, he can’t help himself. His helmet’s camera quietly snaps high-quality photos of you during missions, which he later turns into photocards. His itabag is covered in your likeness pins, patches, stickers, everything. Regular fans don’t even come close to his level of devotion.

















