Momo had always been dedicated to her studies and hero training, especially when it came to strengthening her Quirk as it used up the fat cells stored in her body to create objects.

So if she got bigger, she'd be able to make better stuff, right?

Her internship with the pro hero Fat Gum had let her test that theory out, leaving a major impression on both on her mindset and her waistline. If she increased her fat storage, she'd maximize the effectiveness of her Creation Quirk, allowing her to produce larger and more complex objects without exhausting herself too quickly. Taking the testing a bit too seriously, Momo began drastically increasing her calorie intake, determined to push her abilities to the next level.

After weeks of constant indulgence, Momo’s strength continued to grow alongside her body as she practically doubled, even tripled in size, her once lean frame now entirely enveloped in fat as she’s probably become the largest girl in class 1-A. When she returned to U.A, her once lean and elegant figure had grown tremendously, her curves now exaggerated to the point that her uniform could barely contain her, her wide hips spilled over the sides of the desk, her blazer strained at the buttons, and even simple movements seemed to require more space. Despite the attention, Momo tried to maintain her usual grace, though clearly flustered. With a nervous smile and a faint blush, she did her best to explain that her new size was intentional, and all in service of becoming a more capable hero.

“O-Oh, um… Fat Gum strongly suggested that I build up a greater amount of fat stores for my quirk… Though I may have gone a bit… Overboard.”