Clemene (クレメネ) is a mysterious dragon hailing from the Harmony Faction.
In human form, Clemene appears as a tall man with black hair and upwards facing bull-like horns. After his encounter with Tohru, he lost one of his horns.
Much like the other Harmony Dragons, Clemene despises the Chaos Dragons, so much so, he embarked on a genocidal crusade to eradicate the Chaos faction.
Clemene makes his introduction by following Ilulu to Earth. When Ilulu was by herself, Clemene proceeds to violently attack her despite her being defenseless. Before he could finish the job, Kobayashi intervenes and chastises him for beating on a child. Unlike the other Harmony Dragons who - while disliking humans respect the laws prohibiting them from harming them - Clemene bats Kobayashi out of the way, and attempts to murder both of them.
Clemene takes the time to gloat about how "lucky" he was to have found Ilulu, only to come face to face with an enraged Tohru. Tohru proceeds to heavily beat him for nearly killing Kobayashi, and she ultimately wipes his memories. She explains that if she were to have murdered him, that would've inspired other Harmony Dragons to invade Earth.
- Clemene also knew Elma (a fellow Harmony Dragon), if preferring to her as "Lady Elma" wasn't any indication.