After the Heart's Challenge concludes, Haruki and Sakura must navigate the real world together. They face challenges such as societal expectations, maintaining their relationship, and dealing with the lingering effects of the competition. They must decide if their bond can withstand the test of time and if they are truly meant to be together.
As Haruki and Sakura try to build a life together, they uncover more about the organization behind the Heart's Challenge. They learn that the challenge was designed to manipulate people's emotions and relationships for a specific purpose. Haruki must decide whether to expose the organization and risk everything or to protect the girl he loves.
Haruki confronts the organization, challenging their motives and exposing their secrets. This leads to a climactic confrontation where Haruki and his allies must fight for their freedom and the right to choose their own destinies.