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.
1991
1989
1978
1976
1954
2002
1937
1956
1999
2021
2004
1964
2015
2024
1996
1987
1985
2018
