Lord: Reborn as a Great Demon, but Awakened to Holy Light

[Slow burn] [Villain] [Evil and corrupt] [Behind the scenes] [Transformation?] Reborn as the son of a Demon King, yet awakened the power of holy light? Mephisto: This is my son, the child of light and shadow, the savior of the dualistic world. Astarosa: This is my brother, the savior, the transcendent who unites order and chaos! Hero Emily: This is my master, the two sides of good and evil. His will is everything! Goddess of Dawn: This is my first believer, blessed with the power of holy light, and the finest embodiment of the idea that light and shadow are born together! Jann: Who? Who's singing my praises?! Is it really that exaggerated? I'm just a demon who awakened the power of holy light and likes healing people~ Of course, compared to healing, isn't the greatest use of holy light to 'manipulate people's hearts'? The devout 'hero,' the 'Lord of Evil Dragons,' an embodiment of fear, and the saintly princess who 'fights for a better tomorrow.' No one has noticed that behind the main plane, a web of manipulation woven from 'holy light' is slowly spreading.