少女幻葬ネクロフィリア•Shoujo Gensou Necrophilia

Necrophila of Darkside Sister

Georg and Riselotte are your typical brother and sister, except the former's a priest and the latter's "alive" by way of…darker methods. As a result, Rise is stuck in a child-like body. Georg immerses himself in research to free Rise from these chains. (Source: For The Halibut)