Namiuchigiwa no Muromi-san

A mermaid named Muromi travels and interacts with others, showcasing her distinctive personality. She uses the Hakata dialect and prefers saltwater fish over freshwater ones. She enjoys sweets and drinks sake. Despite her youthful appearance and fish tail, she is said to be thousands of years old. Her journey includes being caught in the fishing nets of high school student Takuro Mukojima. She meets various friends and engages in strange, funny conversations. The manga also features her playing harmless, silly pranks on Takuro during his fishing trips.