During 2006, Kimura became the lead vocalist of the rock band Sadistic Mika Band, which started as a collaboration for Kirin products promotion, and later resulting in the album Narkissos as Sadistic Mikaela Band.
Selama tahun 2006, Kimura menjadi vokalis utama band rock Sadistic Mika Band, yang berkolaborasi untuk mempromosikan produk-produk Kirin yang menghasilkan album Narkissos dengan nama Sadistic Mikaela Band.