Editing LJ Folger (section)

== Throughout The Series ==
===Snowpiercer Murders===
When Layton is hired as train detective, LJ is skeptical, but does not openly discuss the matter unlike her mother, [[Lilah Folger|Lilah]]; LJ keeps quiet, but is observant.<ref name="s1e02">''[[Prepare to Brace]]''</ref>

Later, following Fight Night, LJ is among the residents of First who is questioned by Layton. She reveals that [[Erik]], her bodyguard, did not return home that night. Layton immediately suspects Erik, and Melanie sends [[Bess Till]] to locate him. It quickly becomes clear, however, that LJ is sadistic and is actually the one behind the murders. Layton is quick to realise this, and LJ — fearing being caught — tries to bargain with Layton for blueprints of the train or eventually, weapons. Layton acts as if the deal is done but secretly alerts Melanie to LJ's crimes.

Layton announces to LJ's parents that LJ is the mastermind behind the murders, and Erik was acting out of love covering for her. LJ swings at Layton with a blade but is tackled to the ground before she can do any serious damage. She is later imprisoned in a cell as Melanie makes an announcement about the apprehension of the serial killer.<ref name="s1e04">''[[Without Their Maker]]'' </ref>

===Trial===
LJ's trial quickly approaches following the announcement that she is partly responsible — if not fully responsible — for the murder of Sean Wise. Preparations for the tribunal begin immediately, and Lilah reinforces the idea that LJ pleads that [[Erik Sotto|Erik]] forced her to partake in the murders; she remarks that this is not true, but is told to say it anyway.

As the trial begins and it is time for LJ to give testimony, she tells the passengers of her love for Erik and the weakness he exploited in an effort to manipulate her. She begins to cry, but asks for Mr. Wilford's forgiveness after revealing that Sean Wise was a Wilford informant and implies knowledge of the true nature of the Drawers.

Despite her pleas, she is found guilty by the tribunal and begins to sob. Fearing that LJ knows more than she is letting on, Melanie commutes LJ's sentence due to her young age, allowing her to be released into the custody of her parents. LJ promises to keep Mr. Wilford's secrets as a thank you for helping her out.<ref name="justice">''[[Justice Never Boarded]]''</ref>

When the train is threatened with derailment, LJ sits calmly at a table and knocks over a shaking glass.<ref name="trouble">''[[Trouble Comes Sideways]]''</ref>

===Revolution===
In the midst of the chaos surrounding her parents' and Layton's rebellion, LJ visits the Nightcar for some time with a prostitute. However, LJ discovers Layton waiting for her instead. Remembering how LJ likes dirty little secrets, Layton offers to tell her the dirtiest secret on the train. LJ smiles in obvious interest and anticipation.<ref name="universe">''[[The Universe Is Indifferent]]''</ref>

At Layton's request, [[Miles]] takes LJ to the engine and Melanie's quarters where she discovers that there is no Mr. Wilford and that Melanie is running the train. LJ subsequently reports this fact to her parents, causing chaos to break out when it causes First Class to challenge Melanie. As a result, Commander Grey pulls all [[jackboots]] up train. She is later excited to hear that there are Tailies up train.<ref name="revolution">''[[These Are His Revolutions]]''</ref>

LJ pushes her parents to assert their authority when Layton agrees to surrender rather than allowing Grey and [[Ruth Wardell]] to take over. LJ remains in First Class and so is spared when her parents, Grey and their army are sent to their doom, leaving LJ an orphan.<ref>''[[The Train Demanded Blood]]''</ref>

===Exile===
In the aftermath of the First Snowpiercer War, the Folgers' first class carriage is subsequently taken over by [[Pike]] for what was intended to be a never-ending party. Having lost everything, LJ is left in hysterics at what she witnesses before being thrown out by Pike. LJ would make her way into Third Class where she punches [[John Osweiller]] in the face after thinking he was going to assault her sexually. After calming down, the two began to bond over drinks, putting aside their class differences and plotting to survive in a post-First Class world.<ref>''[[994 Cars Long]]''</ref>

===Wilford's Return===
After ''[[Big Alice]]'' latches onto the train, LJ visits the Tail for the first time with Oz and is excited that Wilford has returned. LJ runs off in excitement chased by Oz.<ref>''[[The Time of Two Engines]]''</ref>

LJ later meets with Wilford when he boards Snowpiercer for the meeting with Layton and Melanie. LJ is ecstatic, and runs to give Wilford a hug. She explains that her parents didn't survive the uprising, but remarks that he still has a lot of support aboard Snowpiercer.<ref>''[[Smolder to Life]]''</ref>

===Death===
After Wilford's exile and the decision to separate the trains, LJ decides to remain on ''[[Snowpiercer]]'' while Oz joins ''[[Big Alice]]'' in going to New Eden. LJ is disgusted with her husband's decision to make a change and leave behind her and the chance for power, declaring rather unconvincingly that she'll make it and that she's a survivor.

A short time after the trains separate, LJ puts her father's glass eye in her mouth and plays with it as an act of comfort. A passing man bumps into her, causing LJ to accidentally swallow the glass eye. LJ then chokes to death on Robert's eye, dying alone with no one to care about her.<ref name="Sinners">''[[The Original Sinners]]''</ref>