A few years after remarrying, Mirei was happy with her good relationship with her stepdaughter Manami. However, Mirei had one regret... and that was her only son Satoshi, born with her ex-husband. Ever since they were separated when Satoshi was young, Mirei has never forgotten about him for even a minute. She hopes to see Satoshi when he grows up... Mirei's wish becomes a reality. Manami brings her boyfriend home to introduce him to Mirei, but...