Twins Ai and Yu Hayakawa decide to set forth in search of their parents and the mysterious dimension they studied.
1 Season • 25 Episodes Total
25 Episodes • Aired October 2001
Episodes
25
First Aired
Oct 2001
2017
1996
2008
2016
2013
2006
2021
2022
2005
1990
1994
2003
2011
