Anokohadare Series Yuu-kun

I really don't know what to call this adorable looking doll. There are no markings on his back and even at the back of his head. I bought this doll in the second-hand shop again as I have a hobby of adopting things that I think I can restore. He was wearing what looks like preschool uniform. Sadly, I cannot really find enough information about him. his old uniform was so damaged by dirt that I don't know if the cleaning damaged the original color of his shorts. The yukata he wears now is handsewn by me. I think it really fits him. For my next free time, I will definitely sew some socks or make his wooden slippers.

Edit: Finally found an information about this doll. It was called Anokohadare Series dolls. According to the blog I found, it was released during "Epoch around Showa 60". In some listings it was dated as 1988. I don't know which one is correct. The original clothes that he wears is a part of the "Youchien Look" series. The doll is named Yuu-kun according to the blog.