How is the ending plot of the cartoon AnneHappy designed?

AnneHappy is an animation adapted from the original comic book of the same name by Japanese cartoonist Qin Ci. The animation started playing on April 7th, 20 16, with the word 12. The story tells the story of a class with a sense of guilt, that is, the class where unfortunate students are concentrated, Class 7 of Tianzhi Yuzhou College, 1. The unlucky flower Koizumi apricot, the sad Bailingshan glass, the unhealthy Kumichuan peony, the crazy Jiang Gutian lotus and the peach blossom robbery are all enrolled here. They started high school to be "happy", but-

As for the ending plot design, I'm not sure. You can look at the Zhihu question, which contains a lot of discussions on this topic.