Kyoko Aikawa was a lesbian, but her mother wanted to see her grandchildren before she died, so she broke up with her boyfriend, married a man she didn't like, and gave birth to a daughter (Ayuri). She has had a very good mother-daughter relationship ever since, and they have gone on many trips together. When her daughter turned 23 and her marriage was decided, she was invited to go on a trip with her mother and daughter one last time, and Kyoko went on her last trip.
