I always can't stand my self crying everytime I watch or read this:
The manga is written by Yu Aida an have set in Italy. The story exploits the Social Welfare Agency (often referred to as simply "the Agency"), ostensibly a charitable institution sponsored by the Italian government. They adopted some little girls that have been a victim or lost their family. They implants and taking care of them with some will of missions. The implants, which consist of synthesized muscles and carbon fiber frames, result in heightened strength and reflexes as well as high resilience to damage and pain. Each girl is paired with a male trainer, or "handler", together as a fratello — Italian for "brother". The handler is responsible for the training, welfare and field performance of his charge, and is free to use whatever methods he considers suitable. While these methods vary according to the handler, a common part of each girl's regimen is brainwashing called "conditioning", which produces a deadly assassin with unquestioning loyalty to her handler but also limits her life span.
Each fratello exhibits a unique dynamic. Most of the handlers have police or military backgrounds and were recruited directly into Section 2. Most also chose their own cyborgs from a list of candidates, though some appear to have been assigned a cyborg. The Social Welfare Agency primarily concerns itself with dealing with the Padania Republic Faction, an organization seeking an independent northern Italy through acts of terrorism and bribery.
(some from Wikipedia)
I start reading the manga since I was 14 in 9th grade. An I got enamored by its first line:
The girl has a mechanical body. However, she is still an adolescent child.
They tell us about the power of love and past. Because however heartless the cyborgs are (well, they could kill without any hesitate), their past and the feeling of being loved still reminiscent. In example, the feeling of Henrietta when Giuseppe (her fratello) hold her or Triela, who has a sarcastic wit and prefers to wear masculine clothing, though she does wear more feminine clothing in later chapters. She is also taking care and loves the teddy bears from her fratello, Hirscher so much. And the most touching part for me is when Rico was falling in love with her target just some seconds before she shot him.
And what I love most from this manga is, the cyborgs are playing violin, flute, piano etc and using violin's case as their gun's case. Especially Henrietta (which is the main character of the series) she is using the Amati and played the violin so well. Most of all, the anime is also playing some minor classical notes as their background music, such as Chopin nocturne in C# minor and even Requiem in D minor.
For you who love an action drama, I suggest this for you.