I dont think it is. The main couple have gotten together and there drama seems to have ended, but the ending before the extras mentioned how he got into the group and the extra talked about it a bit, so I think there will be a few more extras/ chapters to talk about his life. They also gave a few big things about his life ( i won't say since they are spoilers and I dont want to ruin it for you), and I think they really need to be elaborated .
Just looked it up and there are three more extras left.
Thanks for being such a darling (づ￣ ³￣)づ
Is it complete or what?? I wanna know before I start reading this (⊙…⊙ )