The Twelve Kingdoms

Youko Nakajima has spent her life trying to be the model student: obedient, high-achieving, and always ready to help. Yet her red hair and overly accommodating nature leave her isolated, treated more as a convenience than a friend.

Her routine shatters when Keiki, a refined blond man who insists he comes from another world, appears in her classroom and kneels before her. Declaring Youko his master and the rightful ruler of his kingdom, he attempts to bring her to his realm—but their encounter is interrupted by attacks from youma, monstrous creatures that have tracked him. Youko is swept into the unfamiliar world alongside classmates Ikuya Asano and Yuka Sugimoto, and when the chaos separates them from Keiki, the three are forced to survive on their own in a land where inexperience can be fatal.