It started off as a gag strip for the first hundred or so strips before becoming a full blown series. My best guess was maybe Old Xian was going to make the story about Yi being kidnapped & missing for 19 days, misding graduation, but took it in another direction.
I think 19 Days is an anthology of 19(?) different artists including Old Xian and Tan Jiu. This story is now listed as One Day on MangaUpdates instead of 19 Days.
I forgot to mention, that a snippet of this story was included the 19 Days anthology... possibly the introduction, but I'm not 100% sure.
Oh, it's true. As it is written at mangaupdate, this was actually adapted from the story named "One Day" of the anthology named "19 Days". Here is the link for that work if anyone want to look: https://www.mangaupdates.com/series.html?id=149806
Thanks for the answers :)
Hi, i wonder what is the meaning of "19 days" like every chapter we get "one day".. If author was planning to do this for 19 chapters or it has a different meaning? I don't know but i really like this work Jian yi and Xixi are my lovely boys