Final answer:
The warrior nobility in feudal Japan that developed a set of Confucian/Buddhist/Shinto-inspired ideals were the Samurai. They were soldiers who practiced and supported various arts such as Nō theater, tea ceremony, haiku poetry, and martial arts.
Step-by-step explanation:
The warrior nobility in feudal Japan that developed a set of Confucian/Buddhist/Shinto-inspired ideals that included becoming literate and cultured in a variety of arts were the Samurai. During the Kamakura period, the samurai played a significant role as soldiers in enforcing peace and securing property. They also practiced and supported various arts such as Nō theater, tea ceremony, haiku poetry, and martial arts.