Appears in the story "The Case of Yui and Saori". Asami is Reiko's friend. She is dragged along on a mermaid hunt by Reiko, although she doesn't want to go. It is hinted that she also likes Endou. Asami is convinced by Reiko to dress up in a swimsuit with an "E" on the chest in order to confuse the mermaids, but is ambushed by the jealous mermaids and turned, only to be killed by Saori. In the end, Endou reveals to Saori that he had liked Asami.