The ending was way lamer than I thought. I didn't even have any expectation about this series anymore over the past few chapters, and yet, it still managed to disappointed me.
They have been trying to save AI for the whole story and then it turned out she couldn't be saved and no one even achieved anything. It's totally pointless and waste of time, IMO. And Ai being the most boring character in this story is not helping either. Even if she was saved, I wouldn't feel a thing.
For anyone who is still craving out more, I recommend checking out Hello World. It has the same premise but far much better. Heck. I could even say this manga is just a cheap knock off of Hello World which the only memorable thing is Yukiko's tits.