(Main story complete)
The demon Modai had his eye on a human and wanted to drag him home as part of his collection. So he clung to Bliss, doing everything he could to trick the human into signing a soul contract with him.
When Modai first appeared, he was the picture of righteousness. "I simply admire your face. Don't slander me."
Bliss thought, Do you really think I'll believe that?
Later, when he got the chance, Modai grew bolder and rubbed up against his master. "Can't you let me touch you just once?"
Bliss: "...No."
Later still, he clung to his master's arm and shamelessly asked, "Can I sleep in your bed?"
Bliss: "...No."
No one could stop a demon once he'd made up his mind. In the end, he lay on his master's bed, resting against his pillow, his tail secretly curling around his master's waist. "Can I sleep..."
Bliss silently pulled out a golden chain and slipped it around the demon. "Sure."
Modai's tail stiffened. It seemed his master had awakened to some strange interests.
The human knew how dangerous demons were. He approached with a clear head, willingly signed the contract full of lies, and consciously sank into hell.
He wagered everything he had, foolishly hoping to win a demon's... love.
Ambitious beauty top x mischievous, shameless demon bottom, evenly matched
The opening has a touch of mystery. Both leads are chaotic evil.
The bottom is the demon Asmodeus. Modai is an alias, and he's a demon who cares obsessively about looks.
Premise: Beware of contract fraud.