To lose one wedding ring may be unfortunate, but to lose four? The rings pass through Toronto showing us how strangers are unknowingly or knowingly tied together.
A little too clever for its own good.
There is another coffee shop for aspiring time travellers, this one in Hakodate rather than Tokyo, but the rules are the same. The book follows the same format of four interlinked stories but it is starting to feel a little forced and lacking the freshness and interest the first two books had.