Onee-shota RPG: The Young Exorcist's Lewd Battle
About Onee-shota RPG: The Young Exorcist's Lewd Battle
Onee-shota RPG The Young Exorcist's Lewd Battle is an RPGM adventure by Sister Museum, played as Mamoru Ichinose, an orphaned boy adopted into the Amagasaki family. He lives with his caring adoptive sister Noa, who calls him Mamochi, and has rare exorcist talent. The city is warped by the succubus queen Rosalia Violetta, erasing Mamoru's memories and replacing his family with fake relatives. Noa breaks through the distortion, restores his mind, and Pamela blesses him so he can recover his life, friends, and sister. The 2D art uses AI CG, and the story includes monster girl and female domination themes with multiple endings.
The current build is v1.13, released on July 10, 2026, and development is ongoing. It runs on Windows and is available in English, with the translation credited to DeepSeek V4 Pro. The game is censored with mosaics.
Developer's description
Orphaned boy Mamoru Ichinose is taken in by the Amagasaki family, where he finds a peaceful new life with his doting adoptive sister Noa, who affectionately calls him "Mamochi." Blessed with rare exorcist talent, his future seems bright—until the succubus queen Rosalia Violetta awakens. In an instant, Rosalia warps the city. Mamoru's memories are erased. A fake sister pleasures him, a fake mother drains him, and at a school-wide "virginity graduation ceremony," he surrenders his virginity, life force, and exorcist power to Rosalia. Drowned in pleasure, his mind rewritten, he becomes her blind, devoted plaything. Then Noa—the sole holdout against the brainwashing—bursts through warped space. Her voice restores his sanity. Though powerless, Mamoru escapes and, blessed by the angel Pamela, vows to take back his life, his friends, and the sister who never gave up on him.
Onee-shota RPG: The Young Exorcist's Lewd Battle screenshots
Download Onee-shota RPG: The Young Exorcist's Lewd Battle v1.13
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