Rikuo is about a family run company which makes shoes and their struggles to make running shoes. The story is okay, with the family dynamics, especially the son - father relationship. Also, the struggles of the company and the athlete to make his come back and ran the marathon are kind of interesting, though they get tiring after a while. The drama overall is boring and tiring. It took me a bit of an efford to watch, as the twists and the plot itself weren't original and there wasn't much to be expected. The performances, finally, were nice. So, 4 out of 10.