"Kukuku....... Yatsu wa Shitennou no Naka demo Saijaku" to Kaiko sareta Ore, Naze ka Yuusha to Seijo no Shishou ni Naru

Synopsis

Capsodia the Death Scorpion (Level 1) was called the "weakest" and was chased out of his position as one of the Four Heavenly Monarchs in the Demon Lord's Army. He was planning to hide out in the Human's Territory until things die down a bit, but he became idolized by Pafimia, an animal-eared Heroine, and Sharon, a pint-sized Saint... (Source: Kadokawa, translated)