Hiroyuki, the son of a zaibatsu, attended the same university as his childhood friend Waka, who is also the daughter of a zaibatsu, and currently lives together. While still a student, Hiroyuki inherits one of his father's companies, and he also promises to marry Waka once he graduates. A happy future should have been promised to the two people who were envious of everyone. One day, the people who hold a grudge against Hiroyuki attack the house and kidnap Waka...
