[Alfre-Tori] The House of Evil Class Change 11 Demon Cultist Sister

An ambitious demon cultist sister undergoes a shocking gender transformation, shedding her frail male form for a voluptuous female body brimming with huge breasts and a crotch tattoo, as she is reborn under the protection of a devoted nun. The intense bond between the newly empowered sister and her loyal companion fuels a twisted devotion, driving the sister to embrace exhibitionism and class level up while confronting the dark lord's twisted salvation. The story escalates with forbidden rituals, brainwashing techniques, and a desperate struggle to retain her newfound identity amid relentless corruption.