This page contains information regarding Star Trek: Short Treks, and thus may contain spoilers.
On First Contact Day, Lil's father told her that he would be unable to visit this year. This upset Lil, who hung up on him. On the way to the school shuttle stop, Lil knocked fellow student Kima's bag off her shoulder, causing Kima to miss the shuttle. When Kima arrived (late) to class, she purposefully shoved Lil with her bag. Lil sent a drawing of their teacher, Mrs. K, to Kima's computer, which got Kima in trouble when the teacher saw it. Later, in the school library, Kima tripped Lil. Enraged, Lil followed Kima to her locker and began a fight with her.
The two girls were awaiting punishment when news of the Synth attack on Mars broke. In light of the devastation and the unknown fate of their parents (Kima's mother also being a resident of Mars), Kima and Lil put aside their differences and held hands. (ST: "Children of Mars")