One day during late fall of my sophomore year in high school. In a tranquil high school, a yellow-haired former student, Ju-eun-seom, appears heavily armed due to an odd rumor. Contrary to the bizarre rumors, students admire him for his striking appearance, and Cheon Yi-seo secretly leaves a gift at Ju-eun Island's location at the behest of her younger brother. The following year, the two find themselves in the same class next to each other. To Cheon Yi-seo, who greets him casually, Joo Eun-seom displays an unusually harsh caution for some unknown reason....... "ha.... Do it, really. If it shows, it will kill you."