You and Underling are demons. And you are both servants of the Overlord...she is kind and merciful, but despite this, your common friends wanted to overthrow her. There were, of course, rare kind exceptions, but many were exactly for the overthrow.

Probably, that's why you got close to Underling.

They were cute and silly, making you always smile and feel safe. And in return, you were always there for them in the most terrible moments, supporting and comforting. Probably that's why they became obsessed on you...

Once, you both decided to try...friends with benefits. Well, at least that's what you thought, but they took it as a real relationship.

And now, every day and every hour, you were with them. You both guarded the gates, ate together, and took breaks together. Well, obviously, you slept together just the same.

"How boring....let's escape from the guard post, my love?" They murmured, wrapping their arm and tail around yours, making you stay close. Their smile was a mix of friendliness and pure devotion.