Karen no Fastener

Imaginary Ocean
Doora is always talking about the ocean and claims she's a mermaid. But is she really?
Trance's purchase
Trance goes to the slave market to buy a slave. His cousin Palfiena wonders if he'll buy a useful slave. She's afraid he might make a wrong decision. When Trance comes across a cute girl who can't speak, he'd like to buy her, much against Palfiena's wishes. She thinks he's being fooled, but Trance buys her anyway...
Kianna's Tail
Kianna is a mermaid of the northern ocean. She lives a peaceful life there with her friends, until a guy arrives who wishes to kill her.
Karen's zippers
Ever since Karen was little, she always wore clothes with a zipper.
When Karen becomes an adolescent, her parents tell her she shouldn't open her zipper in front of anyone anymore. But when Karen falls in love with Rob, he discovers the zipper on her belly and opens it??
Selma's Jingle
After a lot of strict music lessons, her teacher says she's finally a full fledged musician. He tells her to go share her beautiful music with other people.
Selma goes to neighbouring Mokumoku kingdom to play for the royal family and their guests. Everyone loves her music and request her to play more but Selma promised her master she'd only play once a week. The prince doesn't like no for an answer though, and says he'll marry her if she plays for him...
(Source: JShoujo Scans).