I drew this inspired by the torii gate of a famous shrine in Hiroshima. It's painted with watercolors on Mermaid paper. From the name "Mermaid paper," I imagined mermaids, and created the original characters, Lala the mermaid and Rele the sea slug, who got lost in the Seto Inland Sea and encountered local specialties and scenery, which I depicted in the painting. Each piece is unique and one-of-a-kind. The big vermilion color, what is it? 【Torii gate】 A red gate on the sea. When the tide goes out, humans can go near it. Rele and Lala seem to have passed through it when the tide was in.