This is the story between single mother housekeeper and mathematics professor,who has a brain damage.
Professor
Kyoko
Widow
Root
Housekeeper Agent
Root (young)
1979
2000
1989
1955
1983
1930
1986
1971
1966
2002
1957
2001
2004
1998
1997
1987
1959
2006
2015
2009
2024
2011
2013
2023
2014
2019
2021
2020
2010
2008
1994
