Higurashi question...?

Well, Higurashi no Naku Koro Ni Kai explains everything about why we have so many different story arcs usually unrelated to each other hoặc parallel to one another. I think bạn should watch the tiếp theo to truly understand why everything is set up the way it is. With Rei & Kira, well, their thêm hoặc less fanservice but bạn can watch them if bạn wish to. Kaku isn't out yet so I'm not for sure about that one yet.

Honestly, bạn should Try đọc the manga. It goes much thêm into depth on the characters and their stories. It's also thêm bone chilling.

If bạn continue to watch it will help clear up your confusion. To me i really liked the firsr season but i like it thêm after i watched the 2nd because it made thêm sense. tổng thể its a good anime.