Soka language: Cultural invasion, religion, brainwashing

Shuuwa-go: Cultural Invasion ~ Religious Brainwashing Edition ~ is an adult RPG made with RPG Maker MZ, set in the isolated mountain nation of Kamui. Players follow Himeki Kyōka, a member of the Imperial Guard, and Amagumi Rei, a captured outlaw, as they investigate the spread of a foreign religion called the Light of Salvation that threatens their nation's traditional order and the protection of their guardian deity, Hiiragi no Kotama. The game combines story-driven narrative with extensive adult content, featuring 57 H-scenes and over 300 character variations across multiple corruption scenarios. Gameplay includes a back-attack system for combat avoidance, a crafting system for synthesizing items to use in battle, and various difficulty aids including a gallery unlock cheat. The narrative explores how the protagonists confront their own pasts while resisting systematic brainwashing and corruption through religious indoctrination, transformation, and psychological manipulation.