Despite the opposition of those around her, Misaki married Koji, who has a stepchild. A fleeting moment of happiness... Koji suddenly passes away. After her funeral, her stepdaughter, Yuta, was supposed to go back to her mother's house, but... "Is it okay for me to replace my father?" Misaki is surprised by Yuta's unexpected words. At this time, Misaki had not yet noticed the true meaning hidden behind the words.
