"You can do anything if you put your mind to it." That is how Mio was raised... if you could call it that... by her rather lazy guardian Reki. Born on an island she has never been away from, Mio grows bored ...

Yosuke's family has a strange tradition. Once every sixty years they receive an egg from a mermaid. When the egg matures, his family dutifully returns it to the sea, where the whole process is then repeated....

Choa is a mermaid who can't swim! Discouraged, she trades the ocean for a pair of human legs. But when the star of the high school swim team finds out her secret, he offers her the chance to prove her family...

Futaba, a boy that has grown up in an overprotected family, suddenly finds himself on the other side of the world, where he meets Kiara, the Amaranthine. They journey to find Kiara's true master, and along t...

Will a half-mermaid, half-human girl bring an end to the feud between humanity and the mer-people — or bring about the destruction of all life on Earth? As a merman named Shona is returning to his birthpla...

An omnibus collection of short stories.

Why did I turn into a character in a video game? The time has come now to take action! LUCIUS, the loser character has transformed into a villain overnight and with his newfound vengeance, LUCIUS will set ou...

Kyoko Suomi is the princess of Earth in the 30th century. Kyoko goes to school among the commoners, unwilling to reveal her true identity and ascend the throne. The king will allow Kyoko to live as she ple...

Naoe-kun is a massage therapist at the "Smiley Boar" clinic. One day he gets a new patient named Erufuda-san, who turns out to be an Elf from a different world. All the junk food of this world has taken its ...

Supernatural creatures live alongside humans, but these "rares" are being hunted to extinction over time. An organization is being formed to protect these rares, and allow them to live their lives as they li...

Lucia is the new girl at school. She and her sister run a public bath that's all the rage. When Lucia meets a terrific-looking surfer boy, there's just one little problem: Lucia is a mermaid-not just any mer...

Nightschool answers the age-old question—Where do demons get their diplomas? Schools may close for the night and the lights may be off, but class is still in session. At the Nightschool, werewolves, vampir...

A collection of short stories. Note that the vast majority of these stories contain heterosexual romance themes. A few stories explore transgender issues, but it's a stretch to call them shounen-ai or BL rom...

Mukojima Takuro is a lonely teenager who spends his time fishing at the pier and, to his incredible surprise, fishes up Muromi, a mermaid. Muromi first off doesn’t realize she's a mermaid until she meets T...

Kurimusubi Daisuke, a man fascinated by the complex zoology of monster girls in fiction, one day finds himself transported to a world full of them! When he encounters an arachne named Neya who needs his help...

Haru possesses the ability to see spirits and otherworldly beings. He's found a place where he's accepted, abilities and all, until a promise from the past comes back and threatens it all...

The curious prince of the mermaid kingdom, Naru, sees a human girl, Nami, and falls in love with her at first sight. Yearning for her love, he seeks a witch to turn himself into a human! But to gain this for...

1-2. Yuukyuu no Kanata Yuki and Hisakuni are twin brothers. Kanata, their childhood friend, was abused by his father in his own home so is staying with Yuki, Hisakuni, and their grandmother. The three were a...

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 t...

A collection of fantasy oneshots with a dash of animal-ear flavor. An onnagata inspires a young boy to get in touch with his inner woman, a family of foxes teach a miserable young tailor to cure leather, a c...

"I am terribly sorry." A god was suddenly prostrating in front of Kayano Takumi. He was killed by mistake. Moreover, he can’t be born again in his old world. However, he is able to live in a different worl...

Once again, Prince Lui is on the road, searching for the perfect pair of huge? that is, for a bride, together with his servant Wilhelm and the witch Dorotea. A shipwreck takes him to an unknown kingdom, wher...

Story about the love between a mermaid named Myuu and a demon named Jirou. This book has various oneshots about the two characters.

In the 19th century, there lived a young pirate king, feared enough to be called the “Devil of the Sea”. His name is Captain Kid! With his mysterious guardian sword, Black Lightning, he sails the seven s...

Chapters 1 &2: The merman Sango couldn’t help but falling in love with President Minami, who had implicit trust in him. However, not only did they have a huge status difference, they were different in spe...