This came as a surprise. I often mention "folding" in my anime and film reviews, it's a term coined by some cognitive scientists who study the film industry, it can be roughly defined as the dynamics of how we create stories on different levels of abstraction, especially using a visual vocabulary, sometimes it's too obvious it verges on the ironic, but it's to my utmost interest when it's done very subtly the normal viewer wouldn't notice it usually. Anime and manga is semi-primitive compared to cinema in this. Here's a classic example though, the folding is explicitly ironic, we have in the 3rd episode a showwithin a show, filmed as a play inside the dorm of the students, it's clever fan service and narrative twists and turns for girls who love to see pretty boys around each other, it's worth observing compared to other examples, and there's a spark of innovation with the role of a mangaka who actually caused all of the narrative around this specific fold, that's something. Midori, Evangelion and Millennium Actress tried to explore that more creatively. There's also another folding device with a sensitive girl ghost who enters the fantasy of one of the boys, possibly mirrored by a soap opera show one of the characters is watching. I also liked how the characters developed and grew within each other.

It's lite and fun stuff, but I'd recommend it only if you're interested in the making of the thing than the final result itself.