Fantasy Au Headcanon:

Where Oikawa is a control freak that wants the protagonist gang to follow every single detail of his evil plan (but they don’t obviously) and ends up being whiney about it the whole time. Kuroo, ever the best ally one could have, pokes fun at him as a sign of affection before telling him the faults in his plan.

“Why aren’t they turning right?” Oikawa complains like a man-child, frustrated over the imperfection of his plan.

“Isn’t it because you gave them the choice to turn left?” Kuroo blinks lazily into the crystal ball where Kenma and his group of friends are at a crossroad.