Disclaimer: All first years in this are 18/19. Second years are 19/20. Third years are 20/21.

Chapter 1:

Tokyo Advanced Nurturing High School, Classroom 1-A. Mijime Chibi’s eyes sparkled as he took in his new surroundings. He had actually made it into the most prestigious high school in the country, and not just any class, but the elite 1-A. If he could just make it to graduation, the world would be his oyster.

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But more importantly, this was high school—a fresh start far from his old life. Here, his past couldn’t follow him, and almost no one knew his name. Finally, he had a real shot at finding a girlfriend.

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Chibi scanned the classroom. Every girl here looked like she’d stepped out of a magazine, which made him a bit nervous, though he tried to brush it off. His eyes wandered to the girl in front of him, lost in her phone and oblivious to the world.

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Yesterday, she had introduced herself as Yamamura Miki. With striking blue eyes and a waterfall of black hair, she drew every gaze in the room. Chibi wasn’t the only one mesmerized by her long, slender legs peeking out from her skirt. His imagination ran wild.

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*poke* *poke* The girl to his left jabbed him with her pencil. Morishita Ai, his childhood friend and the only one here who knew his past, announced in a flat tone, "Chibi, you should stop staring at Miki. Your erection is  giving you away." Her purple eyes sparkled, and her shoulder-length hair framed a mischievous grin.

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Back at their old school, Ai’s slender figure had turned plenty of heads, and more than a few guys had begged Chibi to introduce them. She never gave anyone the time of day, though. As for Chibi, he’d always been too shy to confess, stuck firmly in the friend zone.

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“You really should get it under control,” she said once again.

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The girl in front of them spun around—Kamuro Masumi, the serious type and another star in Chibi’s daydreams. She had the most impressive figure in class. Shooting him a look of pure disgust, she glanced down and said, “There’s barely anything there, just a little bump.” Ai, however, was quick to jump in.

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“Oh no! That’s just because Chibi has a really small cock. If you can see the bump at all, that means he’s rock hard. And Masumi, he’s been staring at your boobs ever since yesterday, Masumi,” Ai corrected with a cheerful smile.

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Masumi shot him another glare, this time tinged with something like pity, before turning away.

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Chibi shot Ai a furious whisper. "Did you really have to wreck my reputation on just the second day?"

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"Then maybe stop ogling girls if you want me to keep quiet," she replied, flicking his bump with a smirk and stifling a laugh.

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At that moment, the classroom door slid open and their homeroom teacher, Mashima Tomonari, strode in with a somber expression.

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“Students, listen up. There was a slight administrative error in this year's paperwork, which means there is one extra student than there should be. Unfortunately, we do not have enough rooms to accommodate the extra student. The staff has deliberated it over. Since there is one extra male in the first year, a single male student shall be selected from all four classes.

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This student will have to choose between expulsion and becoming a beta student. Tomonari sensei shifted awkwardly. "Hoshinomiya Chie sensei will explain the rest," he said, stepping aside for the poised woman behind him. Every boy’s eyes snapped to her, and Chibi couldn’t help but envy class 1-B for having such an attractive homeroom teacher.

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“I will explain the situation of the beta-student…” she began.

“The beta will not have his own room; instead, he will always be sharing a room with another student. Because the girls’ rooms are bigger, it has been decided that the beta will mainly be sharing rooms with the girls.

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The specific girl he shares a room with will change every week, to keep it fair. The school is aware that two members of the opposite sex can be challenging. To facilitate this and ensure that nothing untoward takes place, the beta student will be permanently locked in a chastity cage, and his roommate will be the keyholder. Rest assured, if the beta still attempts to try anything without consent, severe punishment will follow,” she concluded.

“I will perform a preliminary screening to find the three male students in the class with the smallest penis. Those three will then undress in front of the class, and the girls will vote for the beta candidate.

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This process is happening in the 4 other classes, too. Once a candidate for beta has been chosen for all 4 classes, the 4 will be examined by the homeroom teacher of class 1-D, as that is the class the beta will be joining,” she finished with a cheery smile.

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Chibi’s heart pounded in his chest. He knew all too well he was a contender for the smallest. What if he got picked? No way could he end up in class D. And a chastity cage? He might as well wave goodbye to his hopes of ever getting a girlfriend.

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Ai tried to hide her laughter as she watched him squirm. Even Masumi glanced back, offering a smirk that was equal parts mockery and pity.

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Hoshinomiya Sensei then announced that she would be conducting a preliminary screening by going around the class and feeling all the boys’ cocks, and estimating the sizes mentally, she would then call up the three boys with the smallest-sized penises to the front of the class. They would have to undress for the next part of the beta selection.

All of the guys in the class perked up excitedly once they realised that they had the chance to get felt up by the alluring teacher of class 1-B. Only some, like Chibi, were too scared of the outcome to actually be excited in the moment.

Hoshinomiya Chi glided through the classroom, row by row, feeling up the crotch of every male student. It quickly became obvious that she was giving more attention to the students with longer cocks, whilst merely letting her hand linger for a couple of seconds on those whose lengths were smaller. 

Many of the boys were openly jealous towards those getting more attention by her. The biggest surprise was when she arrived at the desk of Katsuragi.

Katsuragi was both intelligent and extremely muscular, well-built young man. He was one of the two leaders of Class 1. However contrary to what people expected, it seemed that his dick size did not match the rest of him. Hoshinomiya excitedly felt around the area of his crotch, lonely to be disappointed and she burst out laughing and couldn't resist making a snide remark. 

“It's okay darling. I would be more surprised if you didn't have any imperfections but I didn't expect it to be so small…” she stifled a laugh. 

On the other hand when she reached the desk of a boy named Machida Koji, she spent a considerable amount of time there. Not only did she feel him up through his trousers but she reached her hand underneath them and teased him for several minutes. "You've got a very big one," she purred alluringly. By the time she was done with him, Machida was breathing heavily. As she walked away, she winked at him and whispered something that sounded suspiciously like an invitation to meet up later. 

She eventually reached Chibi's desk and gave him a reassuring smile and a wink before reaching down to feel him out. Her expression quickly morphed into one of sympathy and she condescendingly patted his hard-on and moved on, acting completely oblivious to Chibi's reaction to the first time he had been touched by someone of the opposite sex, even if it was only for a few seconds. 

Eventually she was done with every guy in the class and she called out three names to come to the front of the class…