Struggling high schooler Miyui Mashio is transported back to 1991, where she attends school with her quarreling parents—realizing she must form an idol group with her mother to help her parents fall in love, or risk never being born.
1975
1966
2021
1999
2000
1964
1996
1986
2007
1978
1976
2014
2025
2019
1993
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2023
2020
