I have a higurashi question..i am literally so confused right now,

Higurashi No Naku Koro Ni Kai is the segundo season.

Nekogoroshi-Hen is a side story OVA that takes place in between both seasons.

Higurashi No Naku Koro Ni Rei is a five episode OVA that sets up Umineko No Naku Koro Ni.

Higurashi No Naku Koro Ni Kira is a four episode OVA series that is basically fanservice of the series.

Higurashi No Naku Koro Ni Kaku is a new addition to the Higurashi No Naku Koro Ni series though it is currently unknown whether it will be an OVA series, another season, or a movie.

There are two pelikula based on Higurashi No Naku Koro Ni entitled Shrill Cries of Summer and Shrill Cries of Summer: Chikai.

Higurashi No Naku Koro Ni also has drama CDs, a manga adaptation, and a light/sound/visual novel series as well.

All I know is that Higurashi Kai comes after the original season