|Debut||Chapter 1: This Place in the Mist|
|Fighting style||Banryukai Karate (Kenji's), Gosaku's grappling, chi manipulaton.|
|Family||Natsumi Narushima (Sister)|
Kenji Kurokawa (Master)
Ryo Narushima (成嶋 亮, Narushima Ryō) is the main character of the manga Shamo. As a child he was considered a genius, until one day he snapped and stabbed his parents to death. After being sent to juvenile prison, he learns karate to defend himself.
Ryo Narushima's personality changes a lot through out the manga. At the beginning he starts as a some what innocent 16 year old stuck in a prison filled with sadistic inmates that take pleasure in beating and raping him. After going through this he finally decides to fight back against his abusers and (to the immense surprise of everyone in the room) bites down while the leader of the abusers is forcing him into oral sex. The Karate instructor Kenji Kurokawa focuses on him in the mandatory Karate classes stating that his fist is either possessed by a god or a demon. After this encounter Ryo shows an extreme amount of devotion in his training. He embraces the mentality of kill or be killed and is not above using cheap attacks or black mail to win a fight.
Ryo Narushima is consistently depicted as being unrepentant for the murder of his parents and is shown repeatedly committing morally repugnant crimes such as assault and rape. Though capable of redemption (as evidenced by his care-taking of his sister and various small charitable acts shown throughout the manga) ultimately Narushima is depicted as a Byronic hero spiraling into darkness, his chances at reform slowly ebbing away as he gives in to more and more of his depraved and brutal tendencies.
When Ryo was younger, he first showed signs of his "darkness" when he made a drawing in middle-school; the drawing which prominently featured blank ink on a white paper was powerful enough to leave a lasting effect on whoever dared to look at it, with accounts from his teacher referring to it as sinister. However there was more light during his childhood, as we learn from his teacher and later from witnessing the action itself, Ryo used to play the violin to a point where others who listen would tear up as the melody continued. Outside of his splendid ability to play the violin or his drawing, not much is known about Ryo's early life except that his parents and other family members, besides his sister Natusmi, placed a lot of expectations upon Ryo, which eventually lead to him not being able to withstand the mental pressure, resulting in the brutal yet accidental murder of his parents.
After the murder of his parents, Ryo is sentenced to spend two years in a juvenile corrections facility. When he first arrives at the facility, he is accompanied by two other people, Jun-Ya Mochizuki and Isao Kanayama. During his first night at the facility, Ryo is lured out by a innocent looking man named Hiromi who brings Ryo to a "welcoming party" hosted by the other inmates. When Ryo arrives at the new cell, he is greeted with Jun-Ya on the floor holding his stomach while puking, indicating that he had been recently beaten. Hiromi reassures Ryo that he will not receive the same treatment as Jun-Ya, and that he is being saved for Masa, a tall muscular man who is essentially the ring-leader of their gang. Ryo notices that Masa plans to rape him and tries to flee, but being as small and weak as he is his attempts at escape are nothing but a futile. Ryo is then held down and overwhelmed by all the members present in the location, leading to Masa raping Ryo.
After being raped, Ryo becomes traumatized and even begins to have nightmares about this event. The next day, Ryo, Jun-Ya and Isao are all assigned different dorms where they will be forced to share a room with another inmate. Ryo is assigned to stay in Dorm 7, Masa's dorm and the place in which his rape occurred. Ryo desperatly protests to staying in dorm 7 and even begs to re assigned a new location but due to Ryo desperately lunging at the officer he is brought down violently. Unknowing to Ryo, Isao is the one who planned for Ryo to be put in dorm 7 as he later reveals he "controls" the facility.
Chi Manipulation (during Black Monkey Arc) - While living in China, Ryu learns the Chi Manipulation art from an old master, presumably of Tai-Chi origin. Unfortunately, this Arc is confirmed to be half-noncanon, thus far Ryu doesn't use the art after the Arc ends.
Extreme Will-Power - Ryu have shown the will to not let himself die and will do anything to win a fight.
High level of intellect - Since the beginning of the manga, Ryu is being called a "could be genius". It can also be seen as he could adapt to almost any situation he's got into.
Musically gifted - Ryu could play sounds he's heard even for one time only. He was also noted to be able to play the violin. Which in turn gave him the ability to play Yan's erhu, which is more commonly known as the Chinese violin in the Western world.
Outstanding speed and reaction time - Ryu could easily dodge punches and hits even from his master Kurogawa.
Talented grappler - Ryo was able to surpass Gosaku in limited time before Grand Cross, much to Gosaku's surprise. Ryo's speed made him on expert level when it came time for his match with Toma.
Talented martial artist - Ryu have trained his Karate to a level of which he could beat almost anyone in a fight.
Tenacity - Ryo has a intimidating feral style that he created with Kenji's karate as a base. Ryo makes up for his lack of exceptional physical strength by combining illegal jabs, throws, and grabs that terrorize most all of his opponents in some way.