@Darklight99 While it is a joke, the kids are not graduating, only Aki and Yuki are (remember that the twins are a year older than Seitarou, Saku, and Miko). Coupled with the fact that they didn't even show Aki and Yuki graduating and moved straight onto the next school year, I noticed that the story seems to be wrapping itself up rather abruptly. Just poking a little fun out of this, as we all already know how many chapters there are since the manga ended over 5 years ago in Japan.