Sengoku Collection - Season 1 Episode 8 Regent Girl

Whilst chasing after a runaway onigiri, Toyotomi Hideyoshi falls down a hole by a tree and enters a strange dream world filled with rice people. There, she encounters Nobunaga, who had ended up in the same world after trying to get Hideyoshi's hidden treasure. They end up embarking on a bizarre quest involving obscure objectives and a war between rice and wheat. Through some bizarre events, Hideyoshi becomes the saviour of the rice people and manages to return to the real world with an object that produces as much rice as she wants.