The dim light of a single candle had lit up the little room of the RV. Piles of notebooks and scrolls overwhelmed the writing-table. Among them, one stood out the most - a giant book titled The Knight in the Tiger's Skin by Shota the Poet, of 12th century. 

Rain pattered upon the window glass. Lightning would cross and illuminate the night sky from time to time. A young boy of around fifteen years sat at the writing-table, scribbling something in a giant notebook which he had nearly finished. 

His hair was long and scarlet red, tied in a neat braid. His golden eyes shimmered at the candlelight, completely focused on the notebook. He was dressed in a worn-out shirt and trousers, apparently little concerned about style or fashion. 

Finally, he slammed the pen to the table and heaved a sigh of relief. He wiped the sweat off his brow and shut the notebook. On top of it, was written: The Guardian Demon. There were two similar notebooks placed on the table: The Guardian Angel and The Guardian Spirit.

"Finished?"

He flinched and looked aside, to see a tall young woman sitting on the window-sill. She was of otherworldly beauty: with long pink hair tied in multiple braids like that of a true fairy, and blazing golden eyes. She was dressed in white robes, with her belly, hands, and feet openly exposed. She wore a flower diadem on her head.

"Yeah. Want to check it out?" the boy asked.

"I already know what you've written, Shota!" She chuckled. "But why didn't you show Johanne's and Yuebai's reunion, in the end? That kind of an ending would've been cuter."

"Hmph, You're the Lady of Imagination. I thought you'd understand it better than anyone..." Shota, the red-haired boy, shook his head with a smile. "The ending for this one was not direct like the two previous ones. Rather metaphorical."

"Ugh, boring!" The pink-haired woman walked up to a single bed and dropped onto it. "Johanne found the true value of perfection, therefore happiness in her life, and didn't need to chase after Yuebai anymore, huh? A girl attaining her perfect life and not needing boys at all... I'm fed up with that trope. Every single human writer is doing that now. It's become cliché. I expected something new from you, Shota."

"Oh, come on, Musa! This sells!" Shota argued, "Look, I've written two love stories! And then, in my defense, Johanne Green is twenty now and still hasn't accepted Lord Yuebai's proposal yet. She claims it's too early for her. Why should I have lied in the story?"

"It's called fiction for a reason," Musa muttered from the bed. 

"Come on!" Shota chuckled, "Musa, don't go grumpy! I still need you, for my future stories."

"I'll fly away. You've upset me."

Musa stood from the bed and headed to the window. Shota sprang up and grabbed her hand:

"No, no, wait! The last one will be a love story, I promise! A true love story!"

"Huh? The last one?" Musa turned back, "You're going to write another one?"

"Well, if you don't fly away." Shota blushed. "I've reserved the last one... for a story which is the dearest to me."

"Oh? What story is that, I wonder?"

"The story... about you, Musa."

"Huh?" A scarlet flush painted the woman's cheeks. "But Shota, I'm not a high guardian like those others..."

"You are!" Shota clutched her hands and squeezed them, "You're better than all of them, Musa. You're Imagination - the force that drives us humans to commit great deeds. Those guardians are concerned about the world, while you protect us humans, specifically. That is why I love you the most."

"Oh, Shota..." Musa went completely red, "You're so sweet!"

She returned to his side and embraced him tightly, pressing him to her bosom.

"So, what are you going to name the story?"

"The Guardian Goddess."