This Japanese TV drama series, in general, is very watchable. But. There are things that just feel so amateurish or inappropriate:
How a bank loan officer could be so rude and impolite to his customers who try to get a loan from the bank? Besides, the interest rates of such loans never been discussed. When a business applies for loan, it must have collateral for such loan. But this old manufacturer never submits anything as collateral for the loan.
When the school places an order for Riku OH shoes, it never clearly show how many pairs for each size. S/M/L/XL never stipulated, and what is the delivery day, and what are prices for each size.
When the boss of the shoe manufacturer give a pair of test trial running shoes to the wounded runner. I really don't know how he knows what the feet size of that runner, yet he just bring a pair of his product to him. How possible it could be?
The acting of some of the actors, male or female, sometimes are just too exaggerated, over acted. There are exaggerated yelling and screaming in this series, but it's typical in any Japanese movie or TV drama series, you just have to take for granted and get use to it.
Most of the actors, especially the leading old protagonist who play the 4th generation of a fading traditional Japanese product. A great actor, he just looks like the guy fighting and struggling for survival. He is one of the Japanese National Treasures.
This serial is highly recommended, if you could get over those flaws as I have mentioned above.
