Merman in My Tub (2014) is a Animation, Comedy, Sci-Fi & Fantasy series that follows tatsumi is a high school student who lives on his own, until a merman named Wakasa takes up residence in his bathtub. His solitary lifestyle is turned upside down by the self-centered (but handsome) new roommate. Currently, you can watch Merman in My Tub on Crunchyroll, Crunchyroll Amazon Channel. Streaming availability may vary by country and platform over time. It has a user rating of 6.2 out of 10 from 17 votes. Fans of animation series may also want to explore similar titles below.