Trapped in a gray, monotonous existence, her heart knew nothing of love. Living in apathy and idleness, she merely existed. Back in her school days, she ran away from home and wandered the streets of Shinjuku. Hope, dreams, desires—none of these ever existed in her life. The only thing that gave her a sense of purpose was a single ten-thousand-yen note. That piece of paper was the sole proof of her existence. But can her true worth really be measured by that alone? This work is a faithful recreation of her real life, depicting the moment an innocent heart is wounded and gradually broken. A story that realistically portrays a part of her life.