Yuu Shiina has a strange habit of "lusting for women's tears." Since his childhood, he has made many girls cry in every way possible.

One day, he is reunited with his former high school classmate, who was known for having a rather dark expression. However, when he met her, she was cheerful and lively, as if she was a completely different person. From this reunion, the gears of fate surrounding Yuu and his former classmate start to turn...

(Source: Shogakukan, translated)