Kuuderika

Kuuderika (クーデリカ) is the younger sister of Arche Eeb Rile Furt and the twin sister of Ureirika.

Personality
Kuuderika's age was around five years old, with eyes similar to Arche's. Young and innocent, she had little understanding of the world around her.

The Invasion of the Large Tomb Arc
Kuuderika was apparently still in her room when Arche returned to the Furt estate. Kuuderika and Uleirika were playing together. Both expressed their excitement that they would be soon moving with Arche. Noticing that their older sister had still yet to return from another one of her missions, the two waited patiently for their sister to return.

Arche Eeb Rile Furt
Kuuderika loved Arche very much, seeing her older sister as an extremely gentle, knowledgeable and warmhearted sister.

Ureirika
Kuuderika would often mimic her twin sister.

Trivia

 * In the Web Novel, Kuuderika and her sister, Uleirika were sold into slavery after Arche vanished. She and her sister were given to Ainz Ooal Gown as sacrifices to a cult of nobles that worshiped him. Ainz later returned them to Arche, allowing them to live peacefully on the 6th Floor.