In a not so distant future where bon-clones are abondant, rain pours on the tin roofs of the bonbi training academy. Within the brightly lit halls, masses of bonbis of every age and variety scurry about their daily activities. With such a diverse, yet still alike multitude of girls it's almost jarring occasionally seeing normal school staff in the crowd, so completely different from the bonbis themselves.
Gym's closed for the day, something about a leaky roof, which means this roxybon's got the perfect secluded den for some much needed delinquent activities. She finds a hiding spot right outside the gym and lays in wait, knowing that a group of chiakis usually goes by here on their way to a study group at around this time. She spots them approaching and silently congratulates herself, trust nerds to be punctual heh, and as luck would have it, as they walk by one of the chiakis straggles a bit behind. Roxybon tenses as she waits for the perfect opportunity to strike, then, adrenaline flooding her body, she pounces out of cover, jamming a hand over the lagging chiaki's mouth and quickly pulling her back and in through the doors of the gym, the other chiakis so engrossed in conversation none of them notice one of them went missing from the herd...

The unfortunate chiaki gets dragged through the gym into an adjacent room crammed with all manner of sports supplies and lands hard on her knees and elbows as roxybon throws her to the floor, places a foot on her back pushing her flat and then kneels on her so she can't wriggle away. She pulls chiaki's hands behind her back with little regard for her comfort and ties them together to her ankles with a nearby jump rope. Satisfied with her handiwork roxybon flips her captive over and chiaki finally realizes what a world of hurt she's in for. This specific roxybon was notorious around the campus for being the meanest of them all, the leader of the rho chi sorority, the alpha of the pack. Seeing the fear of recognition flicker in chiaki's eyes, roxybon smiles and says "Aww don't worry my pet, I won't break you... not completely anyway, that would cause too much trouble" as she kneels down beside her and crams a tennis ball into her mouth to silence any inevitable protests. "You know sweetie, they give us roxys some fun biological enhancements in our final semester" she says as she lifts her skirt and her massive chub flops onto chiaki's tummy with muffled thump. "Our urges do go a liiitle bit crazy, but that's where you come in haha. Now, which one should I ruin first?" she asks reaching under chiaki's skirt and ripping off her panties as tears start swelling in chiaki's eyes.

With her immediate needs sated for the time being, a terrific idea strikes roxybon. She leaves the still slightly trembling chiaki on the floor as she roots around the room, that soggy mess isn't going anywhere anytime soon. She scavenges some more rope that's lying around and returns to her prey. She unties chiaki's previously hastily assembled bonds and re-ties her properly, suspending her in the air in the middle of the room this time. She wedges the tennis ball back in place where she had removed it before so she could plug the nerd's mouth herself, then steps back and examines her masterpiece. She figures the slow drip drip dripping from under chiaki's skirt just won't do, so she finds a couple of bowling pins and plugs the leaky faucet. Content with the result she slips behind chiaki, lightly running her fingers along her neck and shoulders and whispers in her ear "I'm sure you won't have to wait too long to be found dear, the janitor should be around soon to take a look at the roof. Worst case scenario coach finds you monday morning..." and with a final gentle flutter of a kiss on her cheek chiaki finds herself all alone in a slowly darkening room as the day inches ever closer towards evening...