Fallen Plan -An Innocent Angel's Descent into Pleasure-

Fallen Plan 2 -Teaching the Bratty Angel a Lesson as she Falls-

Fallen Plan 3 - Breaking the Indifferent Angel in with Increased Sensitivity -

Daten Keikaku: Muku na Tenshi wa Kairaku ni Ochiru

堕天計画 ―無垢な天使は快楽に堕ちる―

Daten Keikaku 2 -Mesugaki Tenshi o Wakarasete Otosu-

堕天計画2―生意気天使をわからせて堕とす―

堕天計画3―不感天使は●●感度アップで堕とす―

Daten Keikaku 3 -Fukan Tenshi wa Kyousei Kando Up de Otosu-