[AVPlaya]

Some neta to revive this thread...

So we know Yui and Yutaka are Konata's cousins. The question is - what kind? On the mother's side or father's side?

We know that Konata's father is the second son by the nature of his name - Soujirou. Usually when a guy is named jirou there is usually an older brother named ichirou. So he most likely has an aniki. No mention of his other siblings are made. We know nothing of Kanata's sibling status. We know that Yui and Yutaka 's family name is Kobayakawa. This means that:

1. They are the children of Soujirou's sister, and Kobayakawa is her husband's name, or

2. They are the children of Katana's siblings.

3. They are distant relatives

Now theories.

A. Yui and Yutaka are related to them on Soujirou's side - reason being that in Japan father's family are consider closer to mother's family, and the they felt very close to both Soujirou and Konata. Yui-nee-chan seemed to be active in the Izumi house-hold for a long time. However, that would make more sense if they're the kids of his older brother, but their last name isn't Izumi.

B. Yui and Yutaka are related to the Izumi's on Katana's side - reason being that Yutaka is also a chibi'kko and perhaps chibi gene runs in Kanata's side. But as we know from the show, sisters can sometimes be opposites due to the magical "sucking" effect. The facial features of the Kobayakawas seemed more akin to Soujirou side of the family.

C. They're not really that closely related - but the closeness indicate otherwise.

If you're interested, please come up with some new evidence to support one theory or the other, or come up with a new theory yourself.