(From left to right: Chiyako, Jin, Youji, and Rumi)
Maybe the craziest parents in all of anime (at least is any I have seen)
and that's saying a lot. They don't really seem to have any morals whatsoever.
But to give them credit, they do love their children very much.
Koishikawa Jin- Miki's father, now married to Yuu's mother. He is bad at video games.
Koishikawa Rumi- Miki's mother, now married to Yuu's father, current
name: Matsuura Rumi. She is a bad cook (perhaps that's were Miki gets it from).
Matsuura Youji- Yuu's father, now married to Miki's mother. He is good at math.
Matsuura Chiyako- Yuu's mother, now married to Miki's father, current name:
Koishikawa Chiyako. She works for a cosmetics company.