Chaosui, a 17-year-old girl, one day discovered that she was a "copy" of someone else. Her best friend had also lost the memory of being with her, and was out of the confines of the "world". Chaosui felt more and more unfamiliar to herself, and every bit of the past became blurry. Slowly, she felt that she was becoming more and more like "Chaosui"...
Motto: Never underestimate yourself, maybe you are really important