Mio, who divorced ten years ago, raised Yuki on her own. She worked hard not to make her feel sorry for her, and before she knew it, Yuki was in the year of graduating from college. Mio, who has lost her goal while raising her child, is invited to a hot spring trip by her girlfriend, Yuki, to thank her for everything she has done so far. Mio and Yuki set off on a graduation trip just the two of them.
