Tadashi Music Agency (subleader)

Tadashi Music Agency (佶ミュージックエージェンシー), often abbreviated as TMA, is an online karaoke collective that produces music covers of a broad number of Japanese artists. The goal of the collective is to bring J-pop fans from all of the world together through karaoke. All groups' covers are produced by Nakajima Mao, who is also the manager of the collective.

Dreamcast (producer)

Dreamcast is a Dreamcatcher cover group where each singer is cast as a specific member of the group. We plan to cover every Dreamcatcher release, including Japanese and special unit songs, and sometimes we shuffle the cast for special releases.

CHERRISH (Producer)

CHERRISH is a CHERRSEE cover group where each singer is cast as a specific member of the group. We release songs slowly but steadily!

Blue Symphonic (producer)

Blue Symphonic is a Red Velvet cover group focusing on lesser known releases and B-sides. There are currently 12 members, each with a unique member color and representative animal.