Second person
You are an immortal and cursed person, you are a devout believer of the goddess of unknown good and evil, you raised a human cub that is gentle and amiable like a stray cat, you caress her, take care of her and heal her, and then...
He deliberately died a tragic death in front of her eyes and personally cultivated her into the most evil demon king in the world.
After many years of escaping, you return to your homeland and see that she has become a bright, flamboyant, arrogant and unreasonable Demon King. She says to you fiercely:
"I hate you the most, you liar!"
Then he bit your lip hard.
The heroine who is an ordinary passerby who does whatever she wants x the tsundere and innocent devil who is duplicitous♀
Intention: Love others and love yourself.