Eriu

Eriu (エリウ Eriu) is a fairy mascot form the Welton Kingdom and a supporting character in Night Pursuit Pretty Cure, but she and her brother left in search of a certain someone.

Personality
Out of the two siblings, Eriu is the more level-headed one, having to reign in Oisin whenever he gets too excited. She is untrusting of new people and situations and tends to stay close to people she knows, especially Oisin and Izuru.

History
Eriu is a citizen turned fairy mascot from the Welton Kingdom, where she had lived for most of her life together with her parents and younger brother, Oisin. Fairly recently, she and Oisin left their home in search of someone named "Fionn", who appearantly left to earth. Their first stop was Casablance City, since a friend of theirs lives there, who turns out to be Mochizuki Izuru and they haven't left since the appearance of the Pretty Cure and are still staying with Izuru.

Etymology
Eriu (エリウ) - written as Ériu, the name comes from the name of an Irish goddess, who according to legend gave her name to Ireland (which is called Éire in Irish).

Relationships
Mochizuki Izuru - Izuru lives together with the two fairies and they seem to have known each other for quite some time. Izuru tries her best to protect the two, but sometimes still ends up needing help from the Cures.

Oisin - her younger brother. She often looks after him as he is very excitable.