The World of Curios.

In this world Humans, Demons and Curios exists. Demons are otherworldly creatures from a different realm who have come to the world of Curious to ravage and conquer it. Curious are beings who are born from thr worlds natural laws and are creatures who look human but have the characteristics of animals and cannot become stronger by themselves. Humans and Demons can form a contract with a Curio to become Cultivators, growing stronger together as one. Don Han, an orphan child of a humans and a demon forms a contract with a poison type Dragon curio and later with a Curse type Dragon curio and together they thrive to complete their goals and become stronger as they grow with their experiences.