Mugiko, who divorced 10 years ago, raised Masaki on her own. After inheriting her parents' estate, Mugiko decided to open a Japanese restaurant overseas. This became a huge hit, and Mugiko moved to London, leaving Masaki behind. Today is the day Mugiko returns to Japan after taking a long-awaited break. Wanting to relax in an onsen for the first time in a while, Masaki goes to the airport to pick her up.
