After he graduated one of the art colleges in Kyoto, he worked as a designer of Kimono texture for traditional Japanese clothes.
It was during this time that he met his wife-to-be, Tatsu Hirota, who was also studying as a painter under Nishiyama.
He exhibited his painting of the birth of his son, "Dan-ji-umaru" and won a top prize at Shin-Bunten in 1941.
Many of his works are in The Historical Museum of Izumisano city where he was born.His paintings show the beauty of the human body.
Kuma also produced beautiful floral designs in woodblock prints and silk.