
How can everyone get confused about the timeline and still unaware that all of this was a flashback? Probably because they're too cute so we stop realising the real timeline...welp
(=・ω・=)

Yes. This is all flashbacks. It started on that chapter where Jian Yi wants to go to the same university as Zhan Xixi. (Jian Yi is still in high school because he stopped when he was taken away) So we dont really know what happened to Guan Shan and He Tian.

They weren't created at the time so what happens to He Tian & Mo is a mystery for now. But there was a bathtub pic with the caption "wait for them to grow up" so we'll probably get to see what they're up to as well. Also the author can fit them in here: http://www.mangago.zone/read-manga/19_days/bt/311108/Ch34/ he said getting together with everyone was fun and the only other ppl they hang out with are He Tian and Mo.
I wonder what does 42 means.. Or am I just being too slow??
It's a reference to the Hitchiker's Guide to the universe. Someone asks essentially the smartest supercomputer in the universe what the answer to the ultimate question of life, the universe and everything is. The answer is 42. But no one knows the question ...