Full summary: A 'Siblings' fic. Akiakane had to go to Ikebukuro for a photoshoot for the autumn line, and Akari accompanied him there for the weekend. On the same day they left Kengo was absent from school. Mayu had left for a business trip to Tokyo. There's no other choice but for Akira to take care of him, which he doesn't really know how...

A new Monochrome Factor fic~~~ And as usual, AkiKen. XD I think this will be at most 10 or 12 chapters… Though I originally intended to make this just about five chapters… I got carried away… -v-

For those who'd never read Siblings, my other fic, before, Nikaidou Akari is Akira's younger twin sister, with a personality a bit similar to Kengo and is very tall. Nikaidou Akiakane is their 21-year-old older brother, model/actor, and is very tall too. His personality is on the bright side too. ^_^

Fever 熱

Chapter 1 第一話

In the Nikaidou household…

"Akira!" Akari gushed, hands on his shoulders. "Will you really be fine? I'm worried! What would you eat if I'm gone?"

"I said this about a hundred times already. I'm okay! And it's not like I couldn't even cook. And it's not like you guys are going for a month."

Akiakane came over to him. "Do you have any money? Is it enough? Here." He put some into Akira's hands without waiting for an answer, then rushed back up the stairs again to get his bag.

When his brother reappeared. Akira waved the money he had just received. "Aniki, I don't need this much."

"Oh, use it and go shopping with the others or something. I feel bad if I leave you cooped up in the house just like that."

"Oh okay then." He stuffed it into his pajama pocket. "Putting that aside, I'm more worried about you two airheads. Did you forget anything?"

"I don't think so," his two other siblings answered.

"Clothes?"

They nodded.

"Underwear?"

Nod.

"Toiletries?"

Nod.

"Cell phones?"

Nod.

"Are they fully charged?"

Nod.

Akira yawned. I'm betting 500 yen that at least one of them forgot this. Though with whom I don't know.

"Scarves or coats?"

Akari nodded confidently before stopping halfway. "Aah! My lovely lovely scarf!" She ran upstairs before coming back down with a black scarf hung loosely around her neck. "Brr, it's getting cold now!"

"Well, it's autumn." Akiakane stared at his watch. "The taxi should be coming soo—"

"Here it is," Akira said, noticing the flashing yellow headlights outside. He put a coat on and stepped out reluctantly into the cold air with Akari's bag.

"Hey, you two didn't eat yet right?" he asked as they came out.

"Oho, don't worry, we have lots of snacks!" They held up a plastic bag full of it.

Akira sweat-dropped. "You two…are gonna be fat."

"No need to worry about that either! Everyday fighting with kokuchi keeps our tummies nice and smooth~" Akari said.

"I really want to hear you said that when you come back with a nice-rounded lump on your stomachs," her twin commented.

"O-kay~ Time to go!" Akiakane said."Bye, Aki~ See you on Sunday~" he said as he got in the front seat.

Akari was going to close the car door, before she stooped and looked at her brother still dressed in pajamas, and who at the moment was yawning widely and ruffling his own hair.

Akira noticed. "What?" he asked sleepily.

"Aki~ Don't go back to sleep. Go to school!"

A small '#' appeared on his head as he said "I got it!" with an irritated tone.

In the Asamura household, the previous night…

"Ne-Nee-san?" Kengo asked, obviously surprised. His sister, who had a cold two days ago and who was still in bed when he left for school was now wearing work clothes and bags and clothes were scattered around the floor. "What are you doing?"

"My boss just called and he needs me to go on a business trip to Tokyo!"

"But… why so sudden?" Kengo asked, baffled.

"His secretary was admitted to a hospital so now he needs me to fill in for her!"

"Hee~ When are you coming back?"

Mayu was struggling to force the zip of her bag to loosen; it had caught the thread of a jacket in the middle. Kengo helped her. "Sunday," was the answer.

Ara, Aniki and Akari are going out tomorrow and coming back on Sunday too, he thought.

Mayu saw the taxi already outside waiting for her. She groaned. "Ugh! The taxi's already here!"

Kengo took her heavy travel bag as Mayu rushed around looking for her handbag. As the driver put her bag in the trunk, Kengo said:"Take care, Nee-san. Make sure you don't catch a cold again!"

Kengo sighed raucously. Those were his last words to his older sister before she left for her last-minute business trip. Don't catch a cold. Now he was the one with something worse.

He turned his head slowly to his bedside table. Even that small and slow movement made his head throb. He tried to focus his bleary eyes on his digital clock. 7 a.m.

Aniki and Akari should already be on the move now. And Kou-nii and the others should have arrived, he thought fuzzily. Shirogane and Kou are going somewhere near the mountains, though the purpose was unknown. Probably something to do with kokuchi. Those two wouldn't have paired up unless it was important. They would not be back for quite some time either.

His eyes scrunched up in pain as a cough choked itself fiercely free from his burning lungs and throat. Ugh… I should probably tell somebody…

He reached out weakly for his phone, and squinted at the screen as he struggled to type a text message. His fingers hovered and trembled over the keypad for a moment before he eventually gave up, flipped the phone shut crossly and placed it back on the bedside table with a clatter. I can't even see properly, much less type.

He coughed again into his pillow. It was cold, as it usually was on early autumn mornings. He'd worn a thick long-sleeved shirt over his pajama shirt and thick socks over his ice-cold feet, yet it was still not enough. He still felt cold and his throbbed painfully from the lack of sleep.

I just hope either Akira or Aya notice I'm gone and come here. Then I wouldn't be so alone.

The thoughts circled around in his head as Kengo finally fell into a restless sleep.

Sorry if it's too short… =P I had nothing else to add…

And if I had to list out their height, it would be like this: (continuation from earlier)

Akiakane: 181 cm

Akira: 175 cm

Akari: 173 cm ( haha, she's as tall as Kengo! That's what my ideal height is anyway... )

Kengo: 173 cm

Shirogane: 182 cm

Kou: ? Maybe 180? I never found his bio...

Aya: Around 163 cm I think...