There was SO much to enjoy about this. As a standalone, it had heaps of plot, as well as lots of chemistry and a dual POV so that we got to see both characters in full detail.
Morita is new to his uncle's design/architectural design company. It's got a touch of nepotism to it, because he constantly admits that he knows nothing, but he is fully aware of it and accepts how lucky he is. Hard-working Matsumoto is sent to pick him up at the airport, where they bump into each other and Morita feels a fated mate bond between them...only to find a wedding ring on Matsumoto's hand.
While Morita is shocked and disappointed, he tries to be good and keep his distance. Matsumoto, however, doesn't even acknowledge what's happening, until well into the evening when a Welcome to the Company drinks night ends with Matsumoto going into heat! He's a rare omega at a mostly alpha/beta company. Interesting, this world has more betas than alphas, which means that fated mate bonds are quite rare and mostly unexpected.
Stuff happens...stuff I can't talk about, because it would be super spoilery. However, there is amazing chemistry between Morita and Matsumoto. There's incredibly written angst, about how Morita worries that Matsumoto is being neglected, mistreated, even ignored by his mate/husband, and even some great pacing that lets the little secrets trickle through the plot when necessary.
I LOVED the indecision and uncertainty of Matsumoto trying to figure out what to do about his fated mate bond with Morita. He tries to hard to ignore it, but fate keeps drawing them together, forcing accidental meetings, work forced-proximity and even accidents that pull them together.
The ending was lovely and the five years later page was adorable!