Blood Moon Country, Kemon City.
The route of "pure blood noble" takes blood, bloodstains and veins as the core spirit, and needs the legendary blood realm. The goal is to summon pure blood gods (recommendation level ☆, blood moon is probably already a pure blood god);
The route of "mixed blood devil" takes drinking blood, bathing blood and warm blood as the core spirits, and requires legendary blood skill realm and golden dead spirit realm, with the goal of summoning blood demons (recommendation level ☆☆☆, the blood moon pole may have blood demons);
The route of "Death Blood, Death Curse, and Life Injection" takes blood source, death mantra, and life injection as the core spirits, and requires legendary blood realm and legendary dead spirit realm