Kaoru and some high school students are transported to another world while waiting at a traffic light. It seems they've been summoned as heroes, destined to fight a demon lord! However, Kaoru quickly discovers that the 'hero' is just a festival participant, and his return to his world is a year away. He decides to enjoy his time in this peaceful world, where he meets the charming demon girl, Crom Eina, who mysteriously visits his room every night. What is her true identity? This is an award-winning novel from the 'Become a Novelist' website.