In Class 1-A of Tokyo Advanced Nurturing High School, there was a student who became the talk of the school from the very first day. He was effortlessly cool, even doing his cleaning duties, eating lunch, and standing as punishment in the hallway. Every move he made exuded—Cool! Cooler! Coolest! This student, who embodied coolness and elegance to the extreme, was named—Sakamoto. He casually pushed up his glasses: "I am Sakamoto. What brings you here?"

From childhood to adulthood, Zhuang Ziang has always been the so-called child of other people's families. He was a three-good student every year and ranked first in exams. However, because his parents divorced and his father remarried, he became unloved by his parents.

At the age of eighteen, Zhuang Ziang was diagnosed with a terminal illness and was given only three months to live.

In the last three months, Zhuang Ziang decided to release his inner rebelliousness and wildness and be his true self.

When he climbed over the wall to skip school, he met a girl named Su Yudie. In the last journey of his life, a beam of light shone in.