My partner and I decided to come here for lunch before our flight back home because it is located right behind our hotel. This place is totally local (read: no English) and opens on weekdays for lunch only. As you can probably tell from the restaurant name, they actually boast milk from a local farm that is pasteurized with low temperature and serve/sell dairy ice cream and homemade yogurt, but I didn't try any of that. They also claim to use all pesticide-free vegetables.
Rather than the dairy products, the daily Japanese-style set lunch seemed to be their main focus. It changes every day. For JPY900 you get six small dishes of food, a bowl of white or brown rice and miso soup, both of which can be refilled for free upon request. There was a sign on the wall that said the food might contain a small amount of animal products, and that customers are asked to notify the staff when ordering for a vegan meal.
From what I could gather, everything was vegan on the date I went, but still I did as advised. I just couldn't pass up organic natto with black sesame for only JPY100 so I also ordered one. The whole meal was great! Food was tasty, service was prompt, and with that price it really couldn't get any better than that.
The location can be tricky but by no means challenging. The restaurant is inside a building complex. They have a standing sign out on the street by the building entrance. Just walk inside and you'll see it.Pros: tasty, healthy food, reasonable prices