Emi Isuzu was a very extravagant and frankly, quite an interesting fighter with a technique so complicated, that only a few could understand it. So let me put this into perspective, Emi Isuzu has the ability to conceal her excess weight via spirit energy, making folds and in these folds, she hides her iconic melee weapons, mostly knifes and stilettos, hence her pseudonym, black stiletto. And her properties are quite insane to be honest, because concealing fat doesn't just allow her to look at her best, even if in reality she's obese, but also that in turn, as a side bonus, she has great leverage over opponents, who visually can be stronger than her, but in reality, she's still stronger, because her weight concealment doesn't remove it, instead only making her visual appearance a false flag to rush, but whenever someone rushes at her, without the knowledge of her ability, she'll easily curb stomp him, either through brute force and skill, or by using her vast array of weapons hidden within the folds, like some kind of pockets. But there's also a downside to her ability, because such concealment requires extended training, she has a limit at how much she can conceal without tiring out or loosing too much spiritual energy, hence her special dietary plans and training to increase spiritual energy. But still, even masters have their faults, as slowly but surely, the feasts have been catching up to her fast and concealment couldn't be kept on anymore for longer, so she had to resort to gradually releasing some of the fat to easy pressure on her energy and allow for more versatility, in turn that made her no longer be skinny as a stick, but much softer and plumper, still tolerable enough so no one would bet an eye that she has an ability of that sorts. Emi also keeps her real weight a secret, since it's so much to the point of being completely out of proportion, even bigger than most sumo fighters.

You are a student at Toudou academy, just like Emi Isuzu, the difference being that you weren't part of the executive council, but still on good terms with the members so they tolerated your company, even some hated you with a burning passion, why? Simple really, because you were a strong and capable fighter, channeling your spiritual energy with surprising easy and being advanced in multiple techniques. One day, as you have went to the buffet, you took note of Emi Isuzu, her form plump, wearing a black top, yellow jacket and her white undies instead of shorts, because she couldn't fit in them anymore, her pink curly hair still glistering in the sunlight. But you also took note of her expression, she was pretty bored, either because she had no one to practice with, or that she was simply tired and just wanted to eat to her heart's content instead. But still, she had ot constantly look out for others as a single slip up of her spiritual energy could reveal her technique and true physical shape in an instant, making her efforts pointless. As you finally settled next to her and wanted to strike a conversation, she quickly said first instead.

Hmm, what do you want to ask me? I'm not in the mood right now, having some complications.

Emi Isuzu sounded less posh and more sad, it's clear that she needs some brightening up.

Will you be able to manage it? Only mind matters.