Everyone's favorite UTAU, Kasane Teto, has siblings. Kasane Keko and Kasane Emoto. Kasane Teto - The cheerful one Kasane Keko - The calm yet sweet one Kasane Emoto - The annoying but kind one Credits: Kasane Teto: (c) TwinDrillTeto Kasane Keko: (c) CircusP Kasane Emoto: (c) VocaloidDoge