Medal Collector Succubus

The Medal Collector Succubus (メダルコレクターサキュバス Medaru korekutā sakyubasu) is a recurring NPC who gives the player rewards based on the number of medals they have collected.

Lust Grimm
In this game, the Medal Collector Succubus is in one of the two buildings in Hoshifuri Village, and she is interested in Red Riding Medals.

Lust Friend
In this game, the Medal Collectors is in a building in Fess Town, specifically the building with a sign of a medal over the door, and she is interested in Fess Medals. 30 Medals gets you a Grimm Hat (+50 Endurance), and 35 medals gets you the Spirit Unity Skill Card.

Succubus Puttel
In this game, the Medal Collector Succubus is in the Hidden Room, and she is interested in Glass Medals. She will reward the player with Spirit Unity skill card after they obtain at least 40 medals, and the Lust Spark skill card after 50 medals.

Trivia

 * The medals in each game are named for a major character in that game, or something related to a major character:
 * Red Riding Medals are named for Rotkappchen, more commonly known as "Little Red Riding Hood".
 * Fess Medals are named for Fess.
 * Glass Medals are named for the glass slippers associated with Cinderella, who Ella is based on.