|Real name||Tachibana Kengo (橘 健吾)|
|Date of birth||February 6|
|Date of death||May 19, 2014|
|Occupation||guitarist, vocalist, disk jockey|
K was a guitarist and the death vocalist of Moi dix Mois. He had also been a DJ under the name DJ Dr.Kranken while working on the TECHNOerLOGICerROCKNROLL project. Suddenly, on May 19, 2014, his relatives found him dead in his home. A memorial live, 暗黒大典礼祭 ~Scarlet Sabbath~, was held for him by Moi dix Mois at Shibuya Club Quattro on August 2nd; his guitar recording was played in the live.
- Ru~ne - September 1999 ~ 2001
- GRAND ZERO - January 2002 ~ November 2004
- Moi dix Mois - 2004~2014
- sUs4 - July 2008 ~ November 2011
- Art Cube - December 2011~2012?