Merrow

Encyclopedia Entry:
A type of mermaid that lives in the sea whose special trait is the hat it wears on its head. They resemble “mermaids” and in the same way, they are a race that is friendly towards humans. However, they are different from the mermaids which have comparably docile personalities. Even among the mermaids family, they’re known as the “most lustful” race. When they find a man who strikes their fancy, they’ll probably use every part of their body to seduce them, and aggressively try to initiate sex.

Purportedly “even the insides of their heads are pink,” and their main interest is sex and romantic affairs with human men. They also peep on romantic affairs and sex of other monsters, and they like having amorous and obscene discussions. Of course, the thing that they enjoy most of all is spending time with their lovers and having sex. When they’ve fallen in love with a man from the bottom of their heart, they only have eyes for him, and all they can think about is sex with him.

Also, they always wear a hat when they’re unmarried. When they make a marriage proposal to a man who strikes their fancy, they entrust the hat to the man. The hat carries the protection of the sea god “Poseidon.”  The magical power that they need to live in the ocean is contained within it. For that reason, when they lose their hats, they lose that magical power, and they become unable to even swim, but they regain it through the spirit energy they consume during sex with their husband.

In this way, they end up becoming entirely dependent on their husbands, it is a strong indication of their will to always be with their husbands and never separate. When a new merrow is born, she is given a hat by “Poseidon” and the “sea bishops” who serve him. Since the power sealed in that hat uses the mother’s power, the husband must transfer a lot of spirit energy to the mother each time a child is born.

Also, in the same way as mermaids, they possess the “mermaid’s blood” which greatly increases the lifespan of those who drink it. The blood is treasured by monsters who need it to increase the lifespan of their husbands, but it’s said the source of distribution is mostly from the merrows. Using the blood, they trade for various things that other monsters possess such as medicines, and accessories. Besides that, they love erotic tales, and often give thanks to other monsters who tell them such stories by offering up blood. For that reason, “mermaid’s blood” almost never appears on the market for humans, but for the monsters, there is ample supply.