Cain is originally sent to the battlefield alongside King Cornelius, but the Altean army is betrayed by Gra, and Cornelius is killed, breathing his dying words to Cain. Cain then limps back to Altea with severe wounds and encounters Marth, Abel, Frey, and Jagen. Although Marth wants to give Cain immediate medical attention, Jagen refuses until the group has escaped from the castle. Cain then gives Marth his father's dying words and accompanies him for the rest of his quest (unless he is chosen to be the decoy in Prologue IV).
The name Cain is of diverse meaning and origin. From its Welsh origins it means beautiful or fair. From its French origins, it means battle plain. From its English/Middle ages origin, it means tall, thin person or reed and from its Hebrew origins it means spear.[1]