Renya

Renya (連夜, Renya) is the protagonist of the fourth Code Geass manga, Code Geass: Renya of the Darkness. He is a young ninja-in-training during the Edo period of Japan, where he lives with his friends in the hidden village. Renya is a kind-hearted person who always looks out for his friends and loved ones. He is very proficient with a short sword, but his true specialty lies with throwing shuriken. Despite this, he still recieves poor grades in his ninja training because he is unskilled with everything else they teach. Renya's left arm is revealed to be mechanical, but why so has yet to be revealed, he was also the heir to his family's throne in the village where he lived. Despite the two aforementioned details, Renya still lived a normal life; however this all changed one afternoon.

Unexpectedly, a Jesuit army attacked Renya's village, burning it to the ground, forcing him and his friends to flee. During this conflict, Renya is startled by a mysterious woman, who he kills out of instinct. Shocked that she didn't die, she offers him the power to save his friends; Renya, in his desperation, accepts. During the process, a figure of the individual who bears a striking resemblance to Lelouch projects out of him and the contract aborts, to which C.C. tells him that he's failed. At that moment, Renya is attacked by a Jesuit soldier and his metal arm suddenly transforms into a more demonic-looking metalic arm with an eye in the center of his palm. When he asks C.C. if this was the Geass she promised him, she replies in surprise that it is instead a curse. However this curse allows Renya to kill Isshin (functioning in the same way as a Radiant Wave Surger), but he soon realizes it is not something he can easily control. Despite this, Renya rushes to save his friends, unaware of the danger he is about to encounter.