Twenty years ago, before Hiroaki was born, her husband Junichi died of cancer. Raising Hiroaki to be a fine son—that was her promise to Junichi. Keeping that promise was Maki's reason for living. Perhaps, without realizing it, Maki had also burdened Hiroaki with Junichi's shadow… Hiroaki became rebellious towards Maki, who constantly talked about Junichi. This was because another emotion, separate from his resentment towards Junichi, had begun to sprout within him. That emotion was jealousy…