The story follows an ordinary girl, Kato Shi. She has close friends she can trust, and a loving boyfriend she deeply cares for. Her life seems complete—peaceful and full of happiness. And yet… deep within her heart, there lingers a subtle sense of something missing. While helping her boyfriend, a photographer,
she begins to meet all kinds of people and step into worlds she has never known before,
experiencing a wide range of events and encounters.

Through these meetings and choices, she gradually comes to realize—
there is another side of herself she has never truly understood.