On the way back from Kagoshima, my wife has chosen retro trains just for part of the planned mileage. I can recommend this option and must say this is the right thing to do when you have extra 4 hours.
A.K.A. Kendo Osaka. Half man half machine since a serious injury in his right ankle in 2010 winter time. Thanks to brilliant Swedish doctors and nurses, he is now able to create more horse power than used to before the injury. He can run fast, he can raise heavy weight at gym and he can ski excellently.