He is considered a good god and patron of Japan, since the Japanese population has for millennia lived off the bounty of the sea.

One myth involves Ryūjin asking a man by the name of Tawara Tōda to help him get rid of a giant centipede attacking his kingdom.

Some versions of the legend say that Empress Jingū asked Isora to go down to Ryūjin's palace and retrieve the tide jewels.

[6] Upon confronting the Korean navy, Jingū threw the kanju (干珠, "tide-ebbing jewel") into the sea, and the tide receded.

Jingū then threw down the manju (満珠, "tide-flowing jewel") and the water rose, drowning the Korean soldiers.