Nagisa Shiota doesn't like sweets.
It reminded him of pointed fingernails digging- pushing- deeper down his throat. Her hand forcing his head down, bruises blooming on his chin from impact. And, stop- stop! Please- please, he'll listen. He's so very, very sorry. He'll be a good girl- please, just please, stop.
(She didn't stop- never listened to his desperate begging, never hesitated as she pulled on his hair until his scalp was tender and red and raw. She was doing what was best for him- she was his mother, after all- and she had made all the same mistakes before. She was only looking after his best interests, she promised. She taught him that he was not in control, and, then, she forced him to obey.)
When she was done, she'd make Nagisa look. She'd force his head close until he could smell it- his nose wrinkling from how pungent and putrid it was. And he'd stare, as she whispered that this is what made him a bad, filthy, disgusting boy.
He'd stay there until he could reply- until he could promise through gritted teeth and scratched throat and a tongue heavy as lead- that he would be a good girl.
The first time it had happened it was a chocolate bar.
After his graduation, Nagisa Shiota knew that everything his mother told him held true. He was disgusting, impure, repulsive. Nagisa Shiota was a bad person. The blood on his hands always sung in recognition, making him tremor and shake, as if the blood was still there, still caked onto his skin- but he had smiled at his teacher's death, but he had still clenched onto the grip of knife until his knuckles turned white, but he had still stabbed and slashed and pierced.
Nagisa Shiota was a bad person, so he became someone else.
He lost his identity in the world of killers- call him anything: military dog, assassin, scum- but he didn't want to be Nagisa Shiota anymore.
He thought of this as he received his first mission, first target, first name.
Kill Mitsukuni Haninozuka.
Keeping a low profile isn't the best option out there but, what choice does he have? After killing near 200 hundred people at such a young age, almost every taskforce in the entire nation is searching high and low for him. Being classified as a low-life, Nagisa's constantly bullied by the academically better--by tolerance. No one supported him, no one was there for him in his time of need which made him regret ever accepting bloodlust. Until one encounter, changed his whole perception.
But, was it for the better or worse?
"Smiling conceals your true intentions"