Sister ~Daraku no Kokuin~
|Title||Sister ~Daraku no Kokuin~|
|Original title||SISTER ～堕落の刻印～|
|Publishers|| Black Lilith & Lilith Soft|
Alfred and Miria are brother and sister who want to protect the church left by their father. Corrupt clergyman Rodrigo arrive one day and takes steps to compromise Alfred. The siblings' life soon turn in a lustful abyss.