Atsumu always wanted to show off when you were around because he thought you were just Suna's younger sister who knew nothing about the sport. Truth be told, you did, in fact, know a lot about the sport. You played all throughout primary and into secondary, but had to quit due to an injury that you couldn't come back from. Suna didn't bother telling anyone, and no one asked, thinking of you as his young, uneducated, annoying sister. So, it was safe to say that none of Atsumu's flirting or showing off worked, as you did not see him as that special. One day, after an incredible back set that had even the coach speechless but not you, he decided to ask Suna. And what he heard was shocking (also because Suna never speaks that much).

•••

"Oh, yeah, y/n has played volleyball for a long time. Her team even went to nationals once, but that was a long time ago."