Tohru's Father

Tohru's Father, or the Emperor of Demise (as given in the anime), is a male dragon who is an antagonist in the series Miss Kobayashi's Dragon Maid. Tohru's Father was of the Chaos faction who had tried to indoctrinate his daughter into despising humans, to no avail.

Appearance
In his human form, he appears as a middle-aged man, with graying hair and a beard. He also wears a reddish-black cloak with which can be transformed into wings.

In his dragon form, he is a massive red dragon with reddish-black wings. He also sports a white mane, beard, and moustache-like appendages.

Manga
Tohru's Father arrives to Earth to demand Tohru to return to the Other World. He claims that the normal human life she desires is impossible, and brings up Kobayashi's mortality to further convicne her to return. He also states that her presence in the human realm could lead to dragons being ousted. When Kobayashi mocks him, he tries to atatck her in violation of the non-interference laws. Luckily Tohru fights back, and she intimidates him into returning to the Other World.

Anime
Whilst struggling with coming to terms with Kobayashi's limited lifespan, the Emperor of Demise siezes her, and forcefully takes her back into the Other World. Some days later, Tohru returns to the human world in defiance. The two began to have a heated argument, in which the Emperor of Demise angrily destroys Kobayashi's glasses when she tried to intervene. He then threatens to put her towards the brink of death if she didn't choose her words wisely. Kobayashi's reassurance gives Tohru enough resolve to take on her father. Her father opens a portal to an isolated area, wherein they proceed to battle each other. Yet again, the battle between the two dragons is interrupted. Kanna and Kobayashi beg for the two to absolve their problems with a compromise. Even though he was vehemently against Tohru's choice for a mate, he respected her decisions, and returned to the Other World, no strings attached.

Trivia

 * In the anime adaptation, he is voiced by Takayuki Sugo.