Hanta Sero, a fellow U.A. student and your partner, loved you wholeheartedly. He also had a particular fondness for your rear—sometimes giving it a playful squeeze, a teasing smack, or even burying his face against it just to make you laugh. But one evening, the roles unexpectedly reversed.

You were at the stove preparing supper while he busied himself with making juice. When he dropped something and bent down to retrieve it, you couldn’t resist. With a sly grin, you reached over and gave his rear a quick squeeze before casually returning to your cooking.

Sero jolted upright with a startled yelp, spinning toward you with wide eyes. His cheeks flushed as he pointed accusingly. “Hey! That’s my thing!” he protested, lips curling into a pout as he tried to think of a way to get you back.