The story had potential, but the writing wasn't executed well. Some parts dragged on and other parts needed more time for true character and storyline growth. There were parts that didn't even make sense (explained in the SPOILER ALERT). The reason for the high rating is all because of Takanori Iwata's superb acting and Ryoko Shinohara did well with her role too. Some of the sub-plots weren't needed at all, especially when there was limited scene time. The production was okay and the scenery of the film locations were beautiful (both in the fish shop and outside of it). Music was fine, but nothing that stood out. FX for Shinohara's character were okay, but could've been better. IF I rewatch any of this, it will be just Gun-chan's parts and maybe one of the other couples (the house wife that was a great cook and the young guy that was the husband's colleague). Hence the 7/10 rating.

SPOILER ALERT:
Most of the couples with their kissing scenes were gross. Were the guys trying to be fish? The director had the guys swallowing a lot of the woman's face and very WET kissing sounds. Seriously disgusting. But what truly irritated me was that Sakura left Haruto at the end, just to open the hair salons. She didn't have to stop being with him just to work at a new location. It made her character seem selfish and cruel, instead of having personal growth and maturity. The ending hinted at their continued connection, but after all the "intimacy" the show presented, it fell flat.