Kurama Ranko(鞍馬 蘭子) is an illegal casino owner and member of Kakerou. Leo is one of her trusted subordinates.
Kurama Ranko is usually seen wearing a kimono and smoking a Kiseru(煙管).
She has an unforgiving personality and is disgusted by persons like Kokonoe Tarou.
Abandoned Building Escape Game
Her interest in Usogui draws her to become a 'man owner', and bet one billion yen on him during the game.