In the hidden realm of Gensokyo, a clan dedicated to chronicling the lives of humans and youkai resides within a village. Reincarnating every 120 to 180 years, the Child of Miare possesses the memories of past lives but faces a short lifespan rarely extending past 30 years. Hieda no Akyuu, the ninth Child of Miare, embarks on compiling the ninth Gensokyo Chronicle, prompting introspection on the paradox of her existence—profoundly enduring yet fleetingly brief.