Alice Seno lives in the shadow of her confident older sister Mayura and can barely make herself heard. After she saves a talking rabbit named Nyozeka from being run over, she learns she can wield the Lotis Words, runes whose spoken power reshapes reality. When a quarrel over Kyo Wakamiya pushes Alice into saying a word she cannot take back, Mayura vanishes, and Alice has to train as a Lotis Master to reach her sister through the dark Maram Words that now hold her.