Showing off their love while luring souls.
Wronged? Take it up with the King of Hell.
The King of Hell rubs his mahjong tiles and says, "Little Black, Little White, hurry up and investigate~~"
User Guide:
1. The Black and White Impermanence in this story are adorable, and it's a sweet romance.
2. It balances love-flirting with solving cases, so please trust me when I say this is a lighthearted case-solving handbook.
