Back in Class Harem Protagonist: CHYOA chapter 10 by WritingGuy

*Anyone reading this, please correct me if I'm wrong regarding the snipped about Ai and Shujin knowing each other. It's been a long time since I last played any of her scenes, though I'll be doing more for research going forward.*


The first thing you noticed was the distinct lack of a soft pillow under your head. Hell, if anything it felt more like hard wood than anything else.

Weren't you supposed to be starting the game back in your apartment? Blinking your eyes, you opened them to see...

Very definitely not the inside of Shujin's- your apartment, but rather the inside of a classroom. A very active, crowded classroom.

What the heck? Had the whole thing with the Harem Protagonist game been a dream? Had you just imagined that whole wild isekai thing yourself? Damn it! Of course it had been too good to be true, you'd been-

Wait.

You definitely hadn't been in a high school classroom the last time you'd been awake. And the writing on the board, the posters, the textbooks- they definitely hadn't been in Japanese... which you could read clear as day.

You were in Shujin Kou's classroom alright. You WERE Shujin Kou. Aaaand you definitely hadn't been imagining all that stuff about the Narrator, the wishstone and all that! Which meant...

...Not that much, honestly. The Narrator was being silent right now, probably because he found the setting just as boring as any old high school classroom. Speaking of... you really wanted to see just what effect your wish had on the world! If you were really here, then the wish you'd made should've affected the heroines too, right?

Looking around, you saw...

Well, a bunch of average looking high school students. The girls were cute in the same way that pretty much every generic background female character was cute, but you couldn't see any of the heroines you'd pumped up in front of or to either side of you. ...Right. This was the world of Harem Protagonist, which meant, unless more had changed with the world than just giving the heroines an enormous magical boob job...

You- Shujin- had yet to meet the majority of the heroines. From what you remembered of the game, Shujin had some kind of history with Ai. Childhood friends, an old crush, or something else, you couldn't remember, but the point was you at least knew Ai prior to the start of the game. Out of all the other heroines... Shujin (the past Shujin, not you) had at least a passing knowledge of Ayano. In fact...

Wasn't she supposed to be your classmate?

'That's right!' Your eyes lit up as you swiveled around, fortunately not drawing to much attention to yourself. This must've been a study hall or a free period or something. ...Or the teacher was just running late, because most of your classmates were either chatting between each other, napping like you'd been, or just plain goofing off. There WERE a few oddballs actually using the time to study, but out of the 25 or so people in the room, less than ten looked like they were actually studying.

But it wasn't your other classmates you were focused on. No, your ears were drawn to the faint, telltale sound of electronic beeps and boops coming from behind you, all the way in the back corner of the room, where...

It was Ayano- the girl was recognizable. She wasn't paying you any mind, currently being engrossed with the game system in her hands- which looked like a weird crossbreed between a PSP and a Nintendo Switch. Right, right, the world of Harem Protagonist mostly used 'lawyer-friendly' brand names, i.e. no actual references to real world corporations like Nintendo or Sony.

That ALSO was not what was on your mind. Because for as much as you recognized Ayano- the glasses and mane of unkempt, shaggy dark hair couldn't have belonged to anyone else, just like her petite, tiny body...

Except that there was one little thing off with this picture. One teeny-tiny way that she wasn't petite in one regard alone, despite her short height, slender frame, and overall undersized build.

Your wish had worked, that much was plain as day to you.

Ayano's boobs were gigantic.

The massive pair of shirt-straining mountains were splayed out across the majority of her desk, the dark-haired girl resting her handheld game console on top of her titanic tits like they were some kind of plush, pillowy shelf, the plastic console as well as the bottom half of her hands sinking into the white globes...

Her eyes flickered upwards and you quickly made sure your eyes were focusing on something in the opposite direction.

Either she didn't care, she hadn't noticed you staring, or she just didn't think it was worth making a scene out of, because not two seconds later, her attention was once more fully drawn to whatever game she was playing.

...Whew! God DAMN.

Words didn't do justice for just how fucking STACKED Ayano was. She wasn't even standing up, and you could already tell that her boobs must've taken up the majority of her torso! Like, god DAMN you were no expert on bra sizes, but she probably wasn't even in the first half of the alphabet!

'Uh... dang. I think I might've made an error here. Not one I want to take back, but... just something I didn't consider when making the wish.'

You'd wished to increase the bust measurement, not the cup size of each heroine. Using Izumi as a measuring stick had been an inspired idea, but one you were now realizing had come with an unforeseen consequence.

Izumi was, from your understanding of the game, a fairly tall young woman. Taller than Shujin, going off of the in-game dialogue, though the in-game dialogue and narration also described Shujin as one of the most physically unfit specimens on the planet, so... eh. Not the time for such thoughts.

Anyways, 40 centimeters was a whopper of an increase no two ways about it, but, say... someone like Satomi, would've had a much smaller cup-size increase thanks to the fact that she was already something like two meters tall, or close to it.

On the flip side... Ayano was the shortest heroine next to Ava, who was literally referred to as a loli character multiple times. Ironic, considering that she was actually one of the older heroines in the game. She was at least a full year ahead of you!

Anyways, the point being...

Ayano couldn't have been more than 150... maybe 155cm at most, and adding an extra 40 centimeters of circumference around her bust was an astounding increase. One her wardrobe was only barely staying together for, because going from 'pint-sized petite' to 'super-stacked shortstack' was just something that the school uniforms hadn't been designed for.

The white and blue striped bra underneath had to have been custom made- you could see it, because Ayano clearly didn't care that she was flashing whole swaths of creamy, pillowy boobflesh through the multitude of diamond-shaped gaps between each button.

Fortunately for your social standing, the sound of movement behind you wrenched your attention away from the Gamer Girl with the Giant Jugs, and you realized-

*Note: For all choices, the girls listed are recommendations but not set in stone. If someone has a better idea, wants to use one of the crossover heroines who has appeared elsewhere in the story, or just plain bring in a new crossover heroine, go for it.*

1) The class period is over, everyone is leaving. Your brain reminds you that your next class is PE.
2) The class period is over, and you can hear the bell ringing. School's out! A girl with a very large shadow looks to be passing out fliers outside your classroom...
3) People are pounding out the door- it's time for lunch!
4) Your vision is blocked by a HUGE wall of white in front of you, and someone irately states "I know what you did!"
5) Your attention was raised for nothing. You hear Ayano's deadpan voice behind you.