Kokone is struggling to maintain her focus on studying for her university exams, as she keeps getting drowsy. Her frequent napping is disrupting her study routine and causing her to have strange dreams about military vehicles that allude to hidden family secrets. Unfortunately, she cannot approach her dad, who is a gifted and imaginative mechanical expert, for any clarification. The more she endures these visions, the more Kokone becomes conscious of being disconnected from her family. The series seamlessly weaves a complex, mystical narrative that delves into the interconnectivity of seemingly different components, like the realms of dreams and reality or the distinction between the past and future.