[転寝屋敷 (デコスケ)] 小日向美穂と初えっち (アイドルマスターシンデレラガールズ) [DL版] , [UTATANEYASHIKI (Decosuke)] Kohinata Miho to Hatsu Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [Digital]