I'm a Deep Sea Fish

From Eel with Love

Anko-san's Needle-ss Fight!

Rest in Mola

Lonely Toxic Transfer Student

Mermaid Morning

Tropical Fish Assault

Carnivorous Fish Blues

Samejima After

My Heart is Summer

The Two of the Mountain Stream

We Met A Bear

Mermaid Night

Let's go to school!

Wake Up the Hero

Ofuro Free For All

Secret Triangle

Mermaids are God's Art

Starting an Idol's Life from the Bottom

The Tropical Fish's Weekend

That's Right, Let's Go to Numazu!

Mermaids' Measuring Day

Extra Chapter - Red List Kabayagi

Extra Chapter - Samejima Morning

Mermaid Picture Book - Special Project

Special One-shot - Cast Off!

Go, Mermaid Girls

Mermaids' Merry Christmas

Shrine Visit

Ninja From The Deep

My Little Big Sister

Sleepover Destiny

Goodbye, Anko-san

Fish people have been welcomed to the town where the human girl Wakasa Otomi lives, and they are integrating well. The fish people can be identified by the physical marks of their fish species, though they take medicine to keep their lower bodies human rather than a fish tail. Otomi loves fish people, and is eager to meet as many as she can! One day, she meets a new transfer student, a lantern fish girl named Tsutsumi Anko. Anko is a bit self-conscious about being a deep sea fish, with a tail that is not cute like some other fish girls. At school, she and Anko deal with various fish problems that intersect with issues an ordinary human high-schooler would face.