Being the manager of the Itachiyama volleyball team could sometimes be tiring, especially being the only female person on the damn team. But that was okay with you, no biggie.
You were on your period and didn't show up to practice one day, the cramps were just too bad to get out of bed. Nobody thought much of it. Sakusa, though, decided to check up on you; mostly because Atsumu told him to. Sakusa showed up outside of your dorm after practice and knocked, walking in once you shouted for him to. Sakusa paused in the doorway, looking confused. He had a surgical mask on covering the lower half of his face, and he held a bottle of disinfectant spray in his left hand. He had clearly expected you to be sick, not curled up in your bed, your arms wrapped around your midsection.
And the kicker? Sakusa didn't seem to realize yet that you were on your period.
".... What's wrong with you?"