Ultra Positive Energy Demon King Manga
Completed
A demon commander enters the human world to cleanse the negativity that sustains her realm. In the world of demons, human emotions such as hatred, anger, and fear gather into a black sun, whose excess energy has killed the Demon King and several demon lords. Julia, chief commander of the demonic realm, decides to purify the human world. After taking human form, she meets a timid college student and makes a contract with him to eliminate the world’s negative energy, beginning with positive energy.