"O...Okay..." He squeaks out, making Karma smirk with amusement. The red haired always enjoyed Nagisa's reactions; especially when they're from being flustered or even small stammers of pure shyness. Karma draped his arm over the smaller's shoulder, feeling him straighten himself from the touch.

"Nagisa. It's okay." He coaxed softly, allowing his form to grow relaxed following a gentle breathing pattern. The blue haired boy turned to Karma.

"S-Sorry...I'm just very s-sensitive right now..." His little hisses when he pronounced the "S" sound was oddly charming, making Karma smile even more. Maybe this mutation wasn't so bad after all.

"Don't worry about it." He replied bluntly, walking forward with Nagisa close to the side of his body. The wind decided to make itself noticeable and make its way towards the two, gusting at their blue and red hair. It was gentle and cool; refreshing the duo as they made their way towards Karma's home. Neither of them spoke on the way, but as soon as they walked to the doorstep, Nagisa started to quiver; the movement transferring towards Karma's body. His eyes looked to the shivering blunette.

"Nagisa? Are you—" he froze in mid-speech when the young assassin's lips started to turn a blue, followed by the chattering of his sharp teeth. Karma could see the life out of Nagisa drain before him, and before the smaller could protest, Karma grabbed his arm and hoisted him into a bridal position. Cold temperatures struck him, as if they were needles being punctured into the skin at once. Quickly shutting the door, Karma bolted to his bedroom, placing the half-snake onto the bed. He began to gather blankets and quilts in attempt to warm up the cold boy, but no avail.

"Fuck..." He spat, digging his fingers into his scalp. Nagisa is an easy target for hypothermia to strike, for a human could only survive a few minutes in freezing temperatures. Karma didn't have much time. He needed to heat Nagisa up before...

No. He shouldn't think that! Nagisa's strong, he thought, glancing over at the boy, who was wrapping the blankets around him to calm down his wild shakes and warm his body up. Karma looked around the room, to spot his thermostat that was hidden behind Nagisa's head. The delinquent darted towards the temperature controller and gripped the dial, twisting it to a much warmer temperature. Then, he looked to Nagisa to see if it had any effect.

Only chattering teeth meant a no, so Karma was left to his last option. He began to climb into the bed and pulled Nagisa close to him, making him squeak out.

"K-Karma?" He asked aloud, curling his legs. The taller just wrapped his hands around Nagisa's chest, trying to warm up his body using an old tactic: body heat.

"Don't speak, Nagisa. Just try and relax..." Karma soothed, shuffling closer. A small, and soft hiss was the smaller's response. Karma didn't want to think about the death of his good friend if this plan failed. All he did, was focus on his heart beat. Every pound kept Nagisa alive.

Thump

Thump

Thump

It was almost like a rhythmic tune, with every beat came another just like it.

Thump

Thump

Thump

Karma inhaled, silently focusing on the half-snakes heart beat. If it were to slow down, that's when Karma needed to further his attempts of warming up Nagisa.

"K-Karma-kun..." A small voice piped up, snapping Karma from his train of thought. The red head tilted his head to one side, seeing Nagisa smile at him. The innocent smile that filled his face that was oh so recognizable.

"T-Thanksss." His voice sounded hoarse. Karma just smiled, and continued to warm up Nagisa until his shivers eased, and his body temperatures rose. The azure haired shuffled under the covers, turning towards Karma and looked straight into his bronze eyes. His slitted eye thinned out, making Nagisa wince and slap a hand over it. Karma immediately shot upwards and stood by him.

"M-My eye...it feels like—" A bee-like stinging reaction make him flinch, crying out in agony. He felt his muscles tense up, and his mouth open wide.

That was when Nagisa felt his vision blur, with echoing screams ringing in his ears.