The female toilets.

Walking across the hallway, Miki noticed a toilet nearby that she could possibly use to undress and hide her clothes at. After all, there were many locations she could think that she could hide her clothes at while she went streaking.

Heading to the bathroom, she thought to herself, 'In order to skip class, I could have said that I had a stomach ache... thanks, Fumiko...' And as she entered the bathroom, she entered the first stall she could find, before she locked the door behind her.

In between short breaths, she slowly undressed, taking off her articles of clothing, one by one. Taking off her blazer, she thought to herself, 'I... I can still go back...' She then unbuttoned her white shirt, letting it fall to the floor, 'and go to the infirmary...'

Unhooking the bra strap on her back. 'No... I shouldn't do this...' Reminded of her sisters, as she took off the last article of clothing that mattered, her skirt. 'For my sisters' sake, I must be a normal girl... I should stop for Fumiko's sake too!'

And as Miki opened the stall door, she looked out the window facing the main compound, as she managed to get a brief glimpse at her own reflection. 'I'm stark naked... in the school... while everybody is in class!'

Her body was shaking from fear, but at the same time, she could feel a rush of adrenaline surge within her! This was exhilarating, even before she had truly begun, but at the same time, it was frightening!

Picking up her dropped clothes, she walked over to the few lockers in the bathroom, placing her clothes in one of the lockers, before closing the door shut. 'I'm sorry... I'm sorry, everybody...'

Peeking out of the bathroom, her gasps remained, as she looked for any sign of human beings. 'I can't help it...' Stepping out into the hallway, she sped across the hall, her pussy dripping liquid ever so slightly, and her breasts jiggling from how big they were and how fast she was running.

'I'm... I'm gonna do it!'

Now, there's a whole list of locations that Miki can go to. There's the classrooms, there's running till the end of the hallway, and there's going up. Or, there's even turning around and going to the other wing.