The show is a little complicated and contains three types of episodes:
Main episodes like the first ten episodes.
Side Story Episodes
Like the Hunter episode, the Knight Falls episode, and the Enemys mine, where there is a story that is not essential but a sequence that you can watch or skip, but I advise you to watch it.
Filler Episodes: or what you called ova in animes
Do not talk about it in a challenging way and it often forms extra filler loops like the Japanese OVA in anime.
The first Filler episode in the series is the operation: Wingman, which revolves around the prom party, which is a funny episode, and then any episode in which the two girls, Claire and Anni who are in some Filler episodes, I recommend watching. You can review the wiki fandom for the great benefit. I hope my review will be of use to you.
Review of Generator Rex
