Volumes 7 (ongoing)
Chapters 99
Published Jun 15, 2011 to Present
Status Publishing
Genres Comedy, Fantasy, Shoujo
Author Itokichi
Serialization Monthly Comic Gene


What happens when an intruder from the sea stakes claim to your bathtub? A cool yet demure teenage boy named Tatsumi must learn to live with the self-obsessed and playful merman, Wakasa, in a small Tokyo apartment. These two dissimilar young men will learn what it takes to deal with one another in their everyday lives. Of course, impromptu visits by Wakasa’s ocean friends–an anthropomorphised octopus, jelly fish, and hermit crab–do not make things easier. Welcome to Tatsumi’s bathtub. It’s getting crowded.


  • There are 7 volumes of the manga at present, with the 8th expected in February 2020.
  • The series has been liscened for release in English by Seven Seas Entertainment, under the title Merman In My Tub with 7 volumes currently avaliable.
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