Raphael, a celestial angel, was gazing at Earth from his heavenly abode, concerned about the emerging darkness.

Lucifer, a demon known for his cunning nature, too, was observing the same from his fiery realm.

Raphael and Lucifer met at the realm boundary. Despite their animosity, they agreed on the looming threat.

'We must unite,' Raphael proposed. Lucifer, though hesitant, agreed, 'For now, angel.'

Arriving on Earth, they witnessed the havoc. 'This is worse than I imagined,' Lucifer muttered.

They began their mission, using their powers to combat the darkness, their unity surprising the humans.

Together, they confronted the evil entity, their powers combining in a spectacular array of light and darkness.

With a final combined attack, they defeated the entity, banishing it to oblivion, saving Earth.

They watched as humanity celebrated, a newfound respect for each other evident in their eyes.

Raphael extended his hand, 'Truce, for our worlds?' Lucifer smirked, 'Truce, for now, angel.'

They parted ways at the realm boundary, their alliance setting a precedent in celestial history.

Back in their realms, they carried the memory of their unlikely partnership, a tale of Angelic Discord.