My ordinary life of staying shut in at home took an unexpected turn when a beautiful girl in a school uniform named Mitsuki suddenly appeared. She fears me and keeps trying to pull away. Yet living together day after day in a room with only the two of us brings profound changes to my heart. Mitsuki's presence transforms my dull daily routine and brings new hope. Every time I try to get closer to her, she tries to run away. But I won't let her go. The intense desire to stay together forever in our own private world shakes my soul.