Larra Archer is the youngest of the Archer family at 14, she's much like Aeyron - reliant on emotions. Larra's bold and brave, but also silly and brazen although we must understand that Larra is still a child. Larra's laid back compared to her other friends, when The Bat, Thoron Hull comes to collect her - Larra's friends shiver in fear but she speaks to them about The Bat with great sarcasm, she's brave as she admits she still fears The Bat after countless times of being alone with him, but she still faces him. Larra's very argumentative in a good way - she has the childish spirit to protest; in her lessons with Lorenzoi Huis she spells things out for him when he lies. She doesn't like being fooled with, or be told something else - she wants the truth and only the truth, even if it may be painful. That desire to not be fooled with makes her defiant and strong, unlike other noblewoman in Cephri Larra can stand up for herself. She fights with The Bat after he accuses Lorenzoi of teaching her shit, despite the age and size difference she treats Thoron Hull the same as her friends, mocking him and fighting him.
Larra is also quite judgy, she never says it out loud but in her mind she's always thinking about people. When she sees Ser Lewyn she thinks he's arrogant and isn't impressed by his flirting to Nymeria. She mocks Aeyron's nickname of The Crowned Killer and isn't impressed when he's totally drunk at the feast. Larra also calls out the fat lords that would be in heaven, due to the feast, she is disgusted by how comfortable some of these lords are; like Lord Maray who stuffed four potatoes in his mouth.
When Trystane Archer tells Larra that he's surrendering to Ulthor, she initially feels betrayed and cannot fight her feelings. Trystane tries explaining the situation to her but like Aeyron her emotions overrule her and she doesn't take a moment to think, she refuses to listen to what her brother has to say and confused she declares that she hates him. She holds her grudge against Edmund and Trystane, not seeing them off when she has to board the King's fleet. She also holds a grudge against Aeyron when he shouts at her for speaking up in defence of The Bat, against Lewyn.
In her innocence as well she feels immense pressure not to embarrass Aeyron or do anything that might shame their family at the feast after the battle. Unbeknownst to everyone she cries herself to sleep everyday, blaming herself for the words she said to her brother Trystane and the fact that their home was taken. Her age difference between the other Archers means she feels alone some times, and even her shield Thoron Hull is a grim man who doesn't enjoy talking to her. She feels pressure as the youngest to not do anything. She still has a lot to learn, and Lorenzoi Huis and Aeyron teach her about the world in different ways. Lorenzoi teaches her to anticipate people and attacks, Aeyron on the other hand exposes the idea of two-face in people. The feast after the battle sort of breaks Larra's illusion on the world, after seeing all the "warriors" of the battle, she realises these warriors eat like pigs and curse like pirates - and when she sees Jon Darklyn, she's suprised that he's the Kingsguard as he looks like he rolled in mud.