Colonel Ren

"Being in the Military. Is quite a lucrative business, isn't it?"

- Colonel Ren

Colonel Ren was a military officer for the Chinese Military but for some reason most likely due to greed decided to break away from the military center in Luoyang and becomes a warlord in a remote mountain village. That only makes an appearance in a few chapter in the manga Code Geass: Lancelot & Guren in the Kallen's side of the story.

Personality
Ren is shown to be an extremely ruthless, greedy and cowardly person that cares about nothing but his own well being; from extorting his own citizens, throwing away his soldier's lives to keep on to power, then goes as far as abandoning them when he is about to lose everything. Not much is known about Ren's military history before he becomes a warlord but he is shown to have a basic understanding of warfare by being able to corner Kallen Kōzuki with his own troops but he is also shown to be unable to adapt to quickly changing battlefield situation like being ambushed, believing that nobody could reach him due to being located in a mountain.

Character History
Ren was first mentioned during a briefing by Zero when discussing about mission to liberate the people from his tyrannical rule thanks to Diethard Ried information network. The Black Knights are shown a video where a chinese soldier executing a sick villager. The soldier then proceed to execute him believing that he is no longer able to work. Ren enslaved the citizens of a small community under his control to extract wealth from the region and used the wealth to enrich himselves. The Black Knights sends a small detachment of forces led by Kallen to liberate the area. Ren confident that nobody could reach him due to the village's steep terrain disregard his own subordinate warning until it was too late. At first he was surprised that small group that consisted of Kallen in her Guren Type-02 and a couple of Gekka have managed to scale the cliffs using their knightmare frames. Ren upon seeing this however quickly turn to mount a counterattack against the "raiders" and he would have succeded if Kallen did not acted as a decoy and send another group led by Benio Akagi to ambush his forces from behind. Ren panicked after seeing this decided to leave his own men behind to save himself but Kallen soon caught up to him and before she killed him she said that she hated this type of people the most.