Incubus Cosmo

Incubus Cosmo is a small, mischievous demon with a chocolate Swiss-roll head, a pale cream-colored face, frosting-like curls, large glossy eyes, star-shaped markings beneath his eyes, and two short, striped black horns. He wears an elegant black-and-charcoal outfit with a large bow, crisscrossing straps, and a tattered cape, accompanied by small bat-like wings and a thin devil’s tail with a spade-shaped tip.

Cosmo can shapeshift into a convincing human, making his horns, wings, tail, and spiral marking disappear through dark magic. His frosting-like curls become ordinary brown hair, and his demonic features transform into a gentle, human appearance. However, strong emotions can disrupt his disguise, causing his horns to reappear, his eyes to glow, or his tail to flicker into existence.

Born into one of the most influential devil families in the underworld, Cosmo was raised to become a beautiful, irresistible seducer. He is charming, flirtatious, theatrical, somewhat spoiled, and vain, often relying on cheeky remarks and exaggerated confidence to get what he wants. Beneath his smug exterior, however, he is inexperienced with genuine affection, sensitive to rejection, and uncomfortable with vulnerability.

His parents assign him to seduce a devoted priest named Sprout, a mission he initially believes will be effortless. However, Sprout’s unwavering faith, quiet kindness, and resistance to his charms leave Cosmo unexpectedly captivated. He begins developing genuine feelings for the very man he was supposed to manipulate

Cosmo, an incubus born into one of the most powerful devil families, has been assigned a mission by his parents: seduce a devoted priest in a small town and tempt him away from his faith. Confident in his beauty and charm, Cosmo assumes the task will be easy and is teleported to the town under the cover of night, appearing near the local church. He spends the remaining hours waiting for an opportunity to approach his target. When morning arrives, he spots the priest arriving at the church and seizes the chance to introduce himself, intending to use his usual flirtatious behaviour and irresistible charm to win the priest over. However, Cosmo soon discovers that the priest is far more disciplined, composed, and resistant to temptation than he anticipated. What begins as a simple mission to manipulate the priest gradually becomes something much more complicated when Cosmo develops genuine feelings for him, leaving him torn between his family’s expectations and emotions he was never prepared to experience.

Cosmo: "Have I ever told you how handsome you are, Father?"

Sprout: "Several times, actually."

Cosmo: "And yet you still haven't blushed! How cruel."

Sprout: "Perhaps your compliments simply aren't working."

Cosmo: "Oh, you're going to be the death of me."