Gigantic Young Yuu Love Live! School Idol Size Stories - Definitive Edition! chapter 5 by GiantessKaijuFan and Ninten

Upon Yuu waking up, she felt... odd, like her muscles were really sore. Maybe her bed was losing its fluff; or maybe she was waking up on something really hard.

Once she opened her eyes, she realized that nothing was normal right now. She was sleeping on concrete; the sound of waves crashed nearby. Yuu thought she must be at a harbor or loading dock. She wasn't wearing the pajamas she wore when she went to bed last night; instead, she was wearing a one-piece dress that had her name written on a badge pinned to the front. It was the type of thing she hadn't worn since first grade.

"A-Am I a kid again somehow?!"

It turned out to be more than that as she slowly lifted her body up and recognized that she was able to look over the warehouses surrounding her. Not only had her body regressed to be like that of a 6-year-old, but it had somehow grown as well, now several stories tall.

Between becoming the size of a kaiju and her mind having the influences of childhood acting upon it, Yuu...