Synopsis: Soccer club captain/rich kid bullies a new rookie underclassman member making them clean soccer balls. A "ball demon" then gives the new kid power to turn the captain into a female sex slave.
The demon tempts the new kid to bully the now slave captain around promising to turn her back if she makes him cum first. However, the ball demon gets exorcised by one of the girls who's also a shrine maiden. The captain is now stuck as a sex slave with only a glimmer of hope of turning back being to get the rookie to cum first.