Clan Name: Soma no Ko
Kekkei Genkai: is the unique ability of Yottsu and Roku that allows them to unify some or all of one's body with the others body. Typically, Youttsu is dormant in Roku's body, with his head protruding from the back of Yottsu neck. When Youttsuis in need of assistance, Roku can bring out some of his body parts to aid Yottsu in blocking or attacking.
If needed, Roku can separate from Yottsu's body so that the two can attack independently. While this can be an effective way of double teaming an opponent, Ukon is not used to being outside of or leading Yottsu's body and is much weaker when he does so. Despite this, the separated brothers are capable of merging with the bodies of others through Parasite Demon Demolition Technique
Once they have done so, Yottsu or Roku can destroy the host's cells from the inside, slowly killing them. While within another's body, however, they are vulnerable to whatever injuries befall upon the host, in theory allowing the host to commit suicide to kill either of the brothers. Yottsu and Roku have had time to train with the bloodline, and with that training, they found out, they can use a fraction of the others strength and they know what the other is thinking, while fighting.
Secret Clan Jutsu: Name: Multiple Connecting punches
Rank: C
Type: Taijutsu
Element:
Description: Roku's arms sprout from one of Youttsu' s and they punch the opponent, doubling the usual damage. The users must be together to use the jutsu. And Yottsu and Roku use a weakned version of this jutsu, than the ones before them.
Clan: Soma no Ko
Name: Multiple Connecting Kicks
Rank: C
Type: Taijutsu
Element:
Description: Roku's legs sprout from one of Yottsu's and they kick the opponent, doubling the usual damage. The users must be together to use the jutsu. And Yottsu and Roku use a weakned version of this jutsu, than the ones before them.
Clan: Soma No Ko
History: This is not really a clan, and more of just a bloodline. It was started years ealier, by two brothers and then those brothers were killed. About the time, when the new bloodline came, was years later, from two twins, named Yottsu and Roku. A man from the sound village, gave it to them, by using the same test, they brothers before them had.
The test, really just puts the two user together, but allows them to separte when it is needed. This makes them a great team, and they need to get along with one another. If they are together long enough, they know what the other is thinking, making this a fairly strong bloodline.
Subject: Soma no Ko(done) 
