Aisuru Anata wa Oshi de Ousama: Isekai Renai-ki

Every day, Shirayuki Hitotsubashi, a student studying for the entrance exam, is faced with a new challenge. What makes her life shine is her idol, Kyoguro Toudou. But one day, Shirayuki wakes up in a foreign land with a castle towering above her! What's more, there are two kings who love Kyoguro Toudou! When she travels to another world, she encounters her favorite "guesser." The exciting romance between Shirayuki and her "guess-the-king" boyfriend...is about to begin!