Kisaragi Sumi is a 20-year-old university student. But do not be surprised that she is a 65-year-old inside. Under pressure to help out with the family business from a young age, she could not have a youth. Even afterwards, she devoted her entire life to taking care of first her grandmother and then her father and mother. Sumi finds herself turning 65 without ever having had a boyfriend. She takes a little pride in having lived with integrity. But after her mother passes away, she has the sudden thought of regaining her youth once more and making a fresh start in life. A miracle happens to her. One day when Sumi wakes up, she has the appearance of a 20-year-old. Despite being bewildered by this unbelievable reality, she introduces herself as Sumire and gets another try at youth.
as Sumire Kisaragi (20 years old)
as Sumire Kisaragi (65 years old)
as Rei
as Yusei Mashiro
as Arisa Kosaka
as Kento Tsujii
as Chiaki Yoshinogo
as Keiwa Amano
as Soun Amano
as Tomiko Ogura
