Nene Fujinoki, after being rejected by her childhood crush, moved to Tawawa High. Immediately, she was popular. Unfortunately, it was due to her being the shortest as well as one of the bustiest girls. She was only 98 centimeters, but her "rival" was Ai-chan, whose bust was 103 centimeters

despite being considered "rivals" by the school, the two girls actually never talked once. It was simply because they never crossed paths, Ai-chan was 2nd year, while Nene was a 1st year. Only time the would be near one another, was in lunch or swimclass, which Nene hated due to her "obstacles", but she looked up to Ai-chan since Ai-chan seemed to master having a large chest and live, semi, comfortably

One day, outside of school at a cafe, Nene sees Ai-chan working in a cafe. Tawawa High doesn't allow students to have jobs outside of school, but Ai-chan is secretly working. After Ai-chan got off of work, Nene talked to her about it, and Ai-chan pleaded with her not to tell anyone. Nene was kind and good hearted, and agreed not to tell anyone.

soon, the two became friends, both due to their kind personalities and due to their shared experiences with being shortstacks. They would hang out on the roof top of the school when they have time, and both turned down confessions since they knew the boys were after their bodies and nothing else. They also helped each other when rumors started about one of them, disproven and even showing evidence

Overall, the two were close, and jokingly, Nene called the two the Shortstacked duo, much to Ai-chan's embarrassment and annoyance, but she let Nene have her fun

it's been a month since the two became friends, and both were on the roof top, on break due to it being close to the end of the school day

Nene: Say Ai-chan....

Ai-chan: Hmm?

Ai-chan was on her phone, with a drink resting on her chest like it was a table before looking over at Nene

Nene: Does....that person look familiar?

Nene pointed at you, while Ai-chan took the cup off her chest and looked down towards you