Legion

Roro is a character from Fire Emblem: Shin Monshō no Nazo: Hikari to Kage no Eiyū, and later appears in ''Fire Emblem: Awakening. ''

Roro first appears in the prologue of Fire Emblem: Shin Monsho no Nazo, goading some brigands into attacking a small Altean village. As this happens, the 07th Platoon led by the Hero of Shadow and Katarina appears to defeat them. Beaten, Roro smirks at his enemies as he makes a shadowy escape.

A short while later, Roro attacks Altea Castle while Prince Marth is holding a knighting ceremony for his new recruits. Acting as a diversion, he allows his partner Katarina to fight against the 07th Platoon, as he deals with the main army. When Katarina was defeated in battle, he saved her from death, and calmly told her that there's always another chance to kill Marth.

After Marth and his allied defeated General Lang in battle, and were declared traitors by Emperor Hardin, Roro hired a band of mercenaries to kill the prince. Despite this Altean spies had spotted his ambush, and Prince Marth was able to escape death once again.

When Roro returned to his hideout, his "mother" Eremiah gave him a scolding for failing too many times. He vows to finish the job once and for all, and took all of his brothers to a castle in the Desert of Death, where he captured General Horace, and used him as a lure. At this castle, Roro reveals that all of his brothers retain the same consciousness, and only by killing the main Roro, can Marth actually defeat him. After a hard fought battle, Marth found the elder Roro and  finally defeated him for good. When his brothers returned home, Eremiah ordered their execution for failing, and Roro was finished for good.

In a free DLC episode released for the game, it's revealed that Roro and his brothers helped his fellow assassins Katarina and Kleine defeat the remnants of the Soothsire Bandits after the events of Fire Emblem: Shadow Dragon. After defeating the bandits, Gharnef gave his permission for Roro, Kleine, and Katarina to assassinate Marth.

In Fire Emblem: Awakening, Roro appears as a free Spotpass character. Like in the previous game, Roro is a berserker, and he uses his art from the last game.