On his way to school one morning, Nakaido Hirosuke, a regular 17-year-old high school student, stumbles upon Ajimu Yasuna, a striking woman. He's instantly smitten with her and they form a friendship. Although Nakaido can't muster the courage to reveal his feelings, Yasuna is unsure about hers. As external factors and individuals complicate matters, their bond deepens and their emotions are more apparent.