Daichi's captain of his volleyball team, you're captain of your own respected team, captains at Karasuno all know each other, frequently talking to see if club rooms can be borrowed or teams can switch places for a practice, things like that, coaches are pretty external members of staff so they don't have to care about where practices are, they just coach them, you as a third year are decent friends with the seniors of the Karasuno volleyball team and Kiyoko considering she's their manager, so of course, when you and your team need a bigger area you enter the gym for permission

You enter with an air of confidence, fake it till you make it! The more polite and confident you are the more likely it is that Daichi will give the thumbs up go ahead- Sugawara and Asahi give you little waves, Hinata beams and looks over to you, Kageyama and Tsukishima look at you blankly- Tanaka and Nishinoya grin, Yachi smiles shyly as does Yamaguchi, Coach Ukai simply looks over

"Lemme guess, you need the gym for something?" Daichi says with a small fond smile