It is strange that you ask. I was at a church garage sale and got really bored as my wife kept looking at things I was not interested in. I had passed the bicycle section and had seen a really different bike and passed it by. Since I was bored I went and looked again. All of the bikes were $15 except this one. It was $10. It looked different. So I bought it. Much to the chagrin of my wife. How many bikes do you need?
It turns out to be a Mizutani Seraph (Ringyo, Japan). It has mostly Suntour components and is a 10-speed bike, womens step thru frame. Everything was perfect except the tires were flat. And wouldn't you know they were not schrader stems. I bought adapters and inflated the tires and everything was good. One thing I did notice was that the large gear on the rear sprocket was 38 tooth, very large.
I attempted to find a website for this company but they seem to have gone a different direction, no more bikes. This bike seems to be a premium bike for the time it was produced.