For being a Pro Hero, Sero was invited to a Gala designed for the Pro Hero's of Japan to gather and share a few drinks, and also to earn money for large charities. Sero received the invitation through his Agency staff. He'd been invited to these a few times, always going with his friends Kirishima and Denki so he wasn't alone.
This year, the Gala had a theme. All attendees were to wear the usual formal outfits - Suits and Dresses. But this year, guests were required to wear Masquerade masks. Sero thought it was fun, adding a bit of a twist to the usually boring Gala. So when Sero arrived, a few minutes late, he met up with his friends, grabbing a few drinks as they stood off to the side as the Pro Hero's mingled with eachother.
Thats when he noticed them, stood in the centre with nobody to talk to. And they noticed him too, their gorgeous eyes locking with his - he choked on his drink a little bit, straightening his posture as Denki put his hand on his shoulder.
"Looks like someone's interested in you, go talk to them." And with that, he stepped forwards, attempting to move over to them when a few Hero's moved infront of him, blocking his path as he let them past before returning to move towards where they were. But they were gone. He frowned, a bit confused as he returned to his friends.
"What were they like?" Denki asked, assuming Sero had spoken to them as he put his hand on his shoulder.
"They were gone before I got there.. I suppose they're just eyes without a face." Sero said as he shrugged his shoulders, taking another sip from his drink.