The reason why Shiratorizawa and Seijou doesn't have female manager is..
"You Karasuno guys are so lucky.." both Hinata and Tsukishima turned towards Koganegawa. "What is so nice about being on the same team with this idiot?" Tsukishima's respond earns him a death glare from Hinata..
"Ah, I kinda get what you mean.." said Kindaichi, joining the conversation. "It's not fair how you guys have two female manager, one of them are super hot at that too!" The other boys nod in agreement.
"Isn't that Datekou has a beautiful manager too?"
"But your manager is too high spec!"
"Speaking of manager, why doesn't Shiratorizawa have one? You guys are champion school right?" Said Tsukishima. "Ah! Seijou doesn't have one too!" Hinata added. Instantly, both Goshiki and Kindaichi's face harden.
"The reason is Ushijima-san.." Shirabu said in a flat tone. "He is too intimidating that no girls dared to become our manager.." Tsukishima burst into a sadistic laughter. "He does seems like a guy who is not popular with girls. So what about you guys? Oikawa-san ia popular right? I thought for sure there are a lot of girls who would want to be your manager."
Kindaichi clench his fist, his face contorted in a painful expression. "He is the very reason we don't have a female manager! There are a few girl volunteered to be our manager but they ended up fighting with each other over attending Oikawa-san. Their fight disrupt our practice and it gets into Iwaizumi-san's nerve. Long story short, our coach decreed that no female manager is allowed for as long as Oikawa-san is in the team."
*I think I'm going to write 1 short each day till Haikyuu S3 is out*