The 3-star is because the art is, as usual, so very beautifully done; meaning, you can tell how MUCH I DISLIKE the actual story.
Besides the "I-can't-praise-enough"
superb
artwork, the only enjoyment I find in this book is, also as usual, in scenes featuring a large crowd, spotting characters from Jimmy's previous books (in this case, I do believe I'm seeing some characters from the then-future books); kind of like playing Where's Waldo/Wally.
Characters I spotted include (keep in mind I have not read Jimmy's every single publication; I might miss some) the couple from 向左走•向右走, the blind girl from 地下鐵, the kid and the moon from 月亮忘記了, the man and the fish from 微笑的魚, and 99% sure 小蝴蝶&小披風 from the then-future-book 小蝴蝶小披風.
According to Jimmy's official website, this book has not yet been published in English (the only translated edition with languages using Roman alphabet is the French edition), so for English-only readers who are interested to know what the story is, I usually don't do summaries, but I'll make an exception.
Though that would mean you will literally know how it goes, needless to say, SPOILER AHEAD. I think people should get to decide if they still want to view the gorgeous illustration after having some kind of idea what the story is, when the only way for them to read it is most likely in a language they do not understand.
Plot summary WIP.