At first, Tsuyu noticed only subtle differences. Her uniform felt slightly tighter around her waist, and the comfortable flexibility she usually relied on for wall-climbing and long leaps was slightly diminished. She initially blamed it on irregular training routines or a few indulgent snacks. But within days, her stomach began to swell noticeably, forming a soft, rounded mound that pressed against her pants and shirt. The folds were gentle at first, but even she could see them grow with alarming speed.

As the week progressed, the changes became more pronounced. Her thighs thickened, her arms developed rolls that hung slightly when she extended them, and her once-flat back began to layer in soft curves. Tsuyu attempted to maintain her agility in hero exercises, but every jump and wall cling required extra effort. Even her tongue quirk, once precise and nimble, struggled with the added weight slowing her reflexes.

Meals became a careful observation for Tsuyu. Even a small breakfast would leave her stomach fuller than expected, and by evening, her once-compact frame had taken on a noticeably rounded shape. The disciplined movements she had relied on for so long now felt awkward, as though her body had betrayed her. She could still sit, kneel, and roll forward, but every action demanded a mental calculation of balance, weight, and gravity.

Within a few weeks, Tsuyu’s softening expanded rapidly. Her belly grew huge, folding over her legs when she sat. Her limbs thickened, her once-toned arms now carrying jiggling layers of fat. Her face even rounded slightly, giving her a more doughy appearance. She still maintained her composure and quiet intelligence, but mobility was becoming increasingly limited. Climbing walls became nearly impossible, and leaping distances shrank dramatically.

As the quirk’s effects continued unchecked, Tsuyu’s body grew to morbid proportions. Her legs, arms, and torso fused into a mass of soft, rolling flesh. The once athletic frog-figure was now a massive, unrecognizable blob, her uniform straining and tearing under the sheer volume of her body. Sitting upright became impossible without support, and any attempt at movement required an exhausting effort that left her breathless.

Eventually, she could no longer move on her own. Her body, now enormous and immobile, rested like a living mound in her dorm, her once-frog-like features still faintly visible but almost buried beneath the layers of fat. Even basic tasks like reaching food or adjusting clothing became impossible without help. Her presence, however, remained calm and composed—Tsuyu’s mind and awareness unaffected by her body’s drastic changes.

The other students noticed her transformation with concern and curiosity. While some tried to motivate her to move, it was clear that her quirk-induced state was permanent. Tsuyu became a stationary figure, a massive, soft embodiment of the quirk’s ultimate effect, her movements completely limited. Her friends adapted around her, bringing her meals, helping with personal care, and ensuring she remained safe, but her days were now spent mostly resting, immobile, and observing the world from her new, enormous frame.

Even in this extreme state, Tsuyu retained her calm, analytical demeanor. She no longer leapt from walls or darted through training exercises, but she adapted to her immobility with quiet grace, accepting her massive, unmovable form as her new reality. Her mind, still sharp and aware, considered tactics and strategies, now for the lives and safety of her friends rather than her own physical feats. She was a different hero now—stationary, enormous, yet still resolute, with the same intelligence and composure that had defined her from the beginning.