The Sumeragi Family
The Sumeragi Family is one of the most powerful families of onmyouji (sorcerors) in all of Japan. Their main rival is the Sakurazukamori, the assassination group that uses Onmyo-jutsu to kill people. Rumor in Japan claims that the Sumeragi Clan and Sakurazukamori are the top sorcerors of Japan, but "on the flip sides of the same coin".The Sumeragi Clan on the front, Sakurazukamori on the back. It is also rumored they have equal powers.