Kohaku Clan

The Kohaku clan was attacked by Furido's 4-Man Team, and subsequently killed. The deceased members of this clan were later revived as zombies by their killers and used in Furido's attack on Konoha. The members have the symbol of black futatsudomoe (double tomoe shaped like yin and yang) tattoed on their upper arm with two lines going around it.

Trivia

 * "Kohaku" means "amber".