Answer
The answer is S.K.I.N., which stands for Spread Kindness In the Name of. It is a supergroup formed in 2007 by Japanese musician and actor Miyavi, along with fellow musicians Yoshiki, Gackt, and Sugizo. The group aimed to promote peace and awareness about social issues through their music and performances. They released one album, "S.K.I.N.", in 2007 and disbanded shortly after.