So this chapter couldn't have been posted without the amazing GirlingBlue254. Seriously, without her there would be no chapter.
By the way, the rating's going up in the next chapters.

[夏] : Summer.

Sawada Tsunayoshi wasn't a lucky writer.

It was in fact a fat euphemism.
And it wasn't the adult languidly lying on the couch who would change his mind.

"That girl isn't reporter material," the man commented while he leaned on his elbow and licked pensively his lips. "Too creative for it..."

The adult looked with his dark eyes at the brown haired man, watching him take the cup of tea (still full of tea, what a waste) and a mocking smirk adorned his pale lips.

"She would make a good inspiration for your next book," he added before he stood up and walked toward the boy in silence.

However, the younger male seemed to have sensed the man's move and he swiftly turned to push the cups in the adult's hands.

"Reborn," Tsuna susurrated just as his eyes gleamed in a warning. "Do you remember the first rule in this era? We can't use people's name or story without their approval!"

The adult furrowed his brows and sighed heavily while he walked in the kitchen and began to put the dirty dishes away.
"Really," he thought out loud. "I'll never get used to this century..."

"And don't forget that you totally traumatized her," the brunette added as he walked in the kitchen. He briskly opened the cupboard door and took the two cups of tea that the other man had stored in it and quickly put them in the dishwasher.

"Traumatized her? Me?" Reborn repeated with a smug smile while leaned against the closed door of the cupboard. "I'd rather think that it was you, No-Good Tsuna, who scared her to death with your unexplainable behavior..."

The young man straightened his back, his eyes faintly narrowing before he glared at the adult with the taunting smirk.
"I still wonder why I keep listening to you," the brunette muttered as he closed the dishwasher harshly.

The man in black raised an amused brow and chuckled. "Come on," he taunted as he moved an admonitory finger in front of the boy's eyes. "You know very well why, No-Good Tsuna. Without me, you'd have never gotten to this point..."

The young man scowled and walked to his bedroom without even caring about the man following him. Tsuna sat on his chair and watched the blank sheet on his writing desk while he took his favorite pen. A shadow covered the empty sheet of paper and the brunette sighed. He already knew where this was going.

"Why aren't you writing?" Reborn calmly asked even if his intonation was enough to convey how much that simple thing annoyed him.

The younger man grimaced and began to twirl the pen between his fingers. It had become a habit after all those sleepless nights passed, cramming on his writing. Then again, after living three years with the adult and having accepted to write for the latter, the boy knew that he should have expected it. However, those three years seemed to have passed in the blink of an eye even if the boy still had nightmares of those writing sessions where Reborn had threatened his life and precious possessions.

"What do you want to eat?" Tsuna said as he put down the pen on the desk.

"Hm," the demon cupped his chin pensively and cocked his head. "Something light, bubbly would be preferred. That girl's writing sated me."

"Okay," the young writer sighed. He closed his eyes and leaned against the back of his chair, cupping his chin pensively. "Something bubbly... What do you think of a short story?"

Reborn softly nodded and went to lie on the bed. He closed his eyes and let the familiar sound of the pen scratching the papers lull him to sleep.

"Tsuna?" the man called once an hour had passed.

"Hm?" the brunette answered absentmindedly. He crossed a katakana with a groan and softly shook his head. That word wouldn't do for that kind of situation.
He took his dictionary, that had been laying on his writing desk, and quickly looked for the definition of the word that he had stumbled upon.

"Don't forget to photocopy and fax your text," the man reminded him while he stretched like a cat. "I don't think that your editor would like if you were to lose your text once again..."

"Ugh," Tsuna groaned, the memory of his editor's angry face nearing the apoplexy floating in his mind. The man, someone named Colonnello, had become rabid when he had found out that the young writer's newest book had vanished in thin air and then had intended to kill him by rewriting everything. "Don't remind me of that..."

"Tsuna," Reborn repeated as he suddenly turned to look at the brunette's hunched back.

"Yes?" the author patiently answered while he tried to find the perfect word for his sentence.

"I don't want to read something bubbly anymore," the demon declared with a smirk when he heard the writer's desperate complaint. "Write me something deep and moving."

Tsuna muttered under his breath and kept writing.

.

.

.

Two months later, the Arcobalenos editorial published the newest book of the author with the ascending reputation, Sawada Tsunayoshi's « Laughing under the stars ».
The book got praised by the critics that congratulated the author for his ability to go from a light and amusing writing to a deep story that could have moved the most insensitive man on Earth.

Anon's answers:

owo: Thanks! Reborn's invisibility is going to play an important part in this story and it needed to be properly introduced. Thus, Haru's apparition. Also, I believe that she wouldn't have screamed if she had been able to seen him 'cause Adult Reborn is Adult Reborn.

Guest: Slow feelings? *nervous laugh* A lot can happen in three years. A lot.

Great: Indeed, he met a fine exemplar of a writing demon. Lucky boy.

I swear to god that I didn't know of the Donten ni Warau when I wrote the original chapter so, no. There's no connection between those two manga. The rating is going up real soon so get ready.

And to end the chapter on the habitual little question: What do you think of Tsuna and Reborn's interactions?