Group datsuryoku-shoutai4

(C64) [Datsuryoku-Syohtai (Yamasaki Tomoya)] Koko ni Iru yo (A Little Snow Fairy Sugar)

(C66) [Datsuryoku-Shoutai (Yamasaki Tomoya)] Twintail na Onnanoko Hon 1

(SC24) [Datsuryoku-Shoutai (Yamasaki Tomoya)] Twintail na Onnanoko no Hon Ver.1.0.β (Aishiteruze Baby)

(C68) [Datsuryoku-Shoutai (Yamasaki Tomoya)] Twintail na Onnanoko Hon 3