Managing Mischief (Haikyuu OC)

If we were to break the fourth wall, then this story would be known as the one in which Kageyama Tobio has a twin, and the whole canon world is thrown off balance. But to Tenchi, she just feels awkward knowing that everyone else is a volleyball geek.
Warning: Tenchi may or may not have multiple personality disorder, judging by the way she's antisocial, cranky, but dependable in one moment, or downright batshit insane the next. (Slight SI)
Possible future pairings (OTPs are unavoidable) and as always, the cover isn't mine, and Haikyuu belongs to the brilliant Haruichi Furudate, who claims ownership over these lovable, dorky characters I will be playing with.