>the anime was a massive success, one of the biggest in history
>Ai practically became the queen of idols despite only being in the prologue
>the manga was also a massive financial success, outselling stuff like Love Hina, and on track to outsell Kaguya
>then the ending happened, and a year later, there wasn't even a squeak about the third season
When people say "this downfall needs to be studied", this is what they're talking about. This is such a spectacular flub, it needs to be in the textbooks. Akasaka flushed his magmun opus down the shitter out of boredom.