Tohno

The Tohno (遠野) clan is a clan of demon/human hybrids with thick demon blood, like the Kishima clan. Their ancestors were local landlords of the area and at the same time they were demon hybrids. Their clan is a traitor since Makihisa was a spy of an organization that terminated evil demon hybrids. After Makihisa's death, Akiha, his daugther, became the new head of the clan. Because of their demon heritage, they are highly susceptible to insanity. There are many relatives\subfamilies such as:

Arima
The Arima family is a branch family of the Tohno clan. Although related, the Arima family have very weak demon blood compared to the other family branches. They have a traditional japanese household with a kendo dojou and a flower arragenment school. Before the events of Tsukihime, Tohno Shiki had to move in with them because of his poor health, despite being the eldest son of the Tohno family. But Shiki came back to the Tohno household eight years afterward. During those eight years, Shiki became friends with his non-blood related cousin, Arima Miyako, who continues to "protect" him even when he returns to the Tohno household.

Kishima
The Kishima family is a branch family of the Tohno clan and they have a common enemy in the Demon Hunter Organization. Due to their thicker demon blood, they have superhuman abilities and symbolize burning flames. Out of them is Kishima Kouma even closer to being a complete oni. Kouma is the eldest son and he is also the head since the clan is already broken apart by him. Makihisa took him as a resort when he destroyed the Nanayas, and his work exceeded the expectation.

Touzaki
The Touzaki family is a branch family of the Tohno clan. They are Blacksmiths who temper weapons. When the time of a real battle comes, they cut off one of their arms and create a blade out of their bones. The bone that becomes their final and greatest work has similiar characteristics to the continent's legendary hazan-ken (Sword that destroys the mountains).

Kugamine
The Kugamine family is a branch family of the Tohno clan. They are the richest out of all the subfamilies and barely carry any demonic powers. The current head is a perverted fatso called Kugamine Tonami. He's supposedly a fiance of Akiha.

Known members:
 * Tohno Shiki (adopted)
 * Tohno Akiha
 * Tohno SHIKI
 * Tohno Makihisa, father of Akiha and SHIKI, and adopted father of Shiki