Probably the most distinctive difference is her childish art style ... like many Sanrio characters, appeared in a limited line of merchandise only to be semi-retired shortly thereafter.

A pop-up store featuring the characters from Piapro and Sanrio will open up in Tokyo Station. Goods include shirts, keychains, and more.

The Umibozu dwells in the ocean, which is in line with Puwawa ... with the two is filled with soft colors and delicate art, perfect for Sanrio fans who like the dreamy aesthetic.