Comedy, Romance, Shoujo

On an especially freezing day, Mirita discovers a secret room in her school containing a kotatsu (a heating table), owned by the handsome twin brothers, Kaise and Nomura Shukan. They promptly kick her out for her discovery, declaring girls are not permitted inside. But the incident only fuels her determination to gain access to that warm room. Even if she must bribe her way in! What shenanigans will she fall into along the way? Will she manage to warm their frigid hearts?