The girl Qian Moyin unexpectedly comes to the world of the game Heian Jing. The seemingly completed game plot actually has another mystery? Qian Moyin's appearance is exactly the same as Tamamo's deceased wife Chiyo who was disguised as a woman? After many incidents, the answer was finally revealed. And she accidentally obtained a demon weapon from Onmyoji Kagura and became the great demon Qian Moyin.
Thunder × Holy Mother × Mary Sue ×
Consider adding a love line in front of Tamamo, setting it as Qian Moyin's reincarnation/soul reshaping for a thousand generations (?
"Onmyoji" and "Decisive Battle!" Heian Kyo" fan light novel
Purpose: Satisfy players who have a hard time getting over Tamamozen and Chiyo. The story behind the Yin Yang Guardian. The heroine is the reinvention of Chiyo's soul. Time travel.