Leila hates the cold. Every winter, she bundles herself up in multiple layers to fight the snowy weather, earning her the nickname Little Penguin due to the way she waddles around her college campus. One day she meets Ken who offers her his coat during a particularly freezing day, and she is immediately attracted to his high body temperature. Leila uses Ken at every opportunity to ward off the cold, and to the surprise of all their friends, Ken doesn't seem to mind her clingy behavior. In fact, he finds it cute for some reason?! But as they spend more time together, their feelings begin to change. What happens when Leila starts to see Ken as more than just a human heater, and Ken realizes that Leila isn't a sweet innocent penguin, but a hot-blooded woman?