It's not an anime (sorry)

This is related to "Ultra Kaguya Princess" but... 1. Kaguya Meshi A currently serialized official work. If you've seen "Ultra Kaguya Princess," you should definitely check this out. 2. Ultra Kaguya Princess Novel Don't mistake this for just a novelization of the movie. You can see developments not present in the movie, such as Iroha's detailed inner thoughts and the unfolding of events from Yachiyo's perspective. It's been a while since I read a novel, but it was easy to read. 3. Official Fanbook If you're a fan, it's worth a read! 4. Ultra Kaguya Princess Manga The manga version of "Ultra Kaguya Princess." Personally, I felt it was a bit lacking because the anime was so good and the pacing was fast... 5. Ultra Kaguya Princess Otsukaresama Book I really want it! I really, really want it! It's tough for those who couldn't go to Comiket... but I was able to see it online, so the staff are too kind. If you're a "Ultra Kaguya Princess" fan, you should definitely check these out!