Loona/History

Past
Not much is known about Loona's history, but at some point before the start of the series, Loona was given up for adoption at a Hellhound Adoption Foundation, where she lived like a prisoner and gave the employees a hard time until Blitzo adopted her when she was one month away from turning eighteen. Despite being old enough to look after herself, Blitzo used to hire babysitters to look after Loona during his absence but the babysitter apparently didn't like Loona.

When Blitzo opened I.M.P, he hired Loona as the receptionist; due to her laid back and dismissive nature, it is presumed that Loona did not actively seek out the position and only took it due to Blitzo asking her to since he didn't want her in the field out of fear that she may be hurt or worse, despite the fact that Loona is just as good, if not better, in both using guns and fighting bare-handed.

"Loo Loo Land"
Loona gets annoyed when Millie, Moxxie and Blitzo get excited about going to Loo Loo Land and shouts at them to "Shut the fuck up!".

"Spring Broken"
Loona apparently struggled with making friends, as she outright confesses this to Vortex as a poor attempt to flirt with him, and reveals that she had no friends at all until he offered to invite her to his girlfriend's parties to help her make friends.

"The Harvest Moon Festival"
During the Harvest Moon Festival, Loona goes with I.M.P to the Wrath Ring. First, she meets Millie's parents and gets a little annoyed when Mille introduces her as Blitzo's Hell Hound, and so she denies stating her name. Then, she videos Moxxie struggling to kill a hog for entertainment. When Blitzo whistles out to her, she ignores it at first but eventually goes to see what the problem was.

"Truth Seekers"
Loona and Millie enter the human world to rescue Blitzo and Moxxie from D.H.O.R.K.S, and they slaughter almost every agent inside.

"Ozzie's"
Loona sits at her station, drinking some beezlejuice and reading a magazine while the others return from killing a bunch of lumberjacks.

After a day at Ozzie's, Blitzo gets back to the house and sees that Loona left him a note saying she was gone to a party with Tex and she'll be back late.

"Queen Bee"
Loona attends to a party hosted by Beelzebub, the queen of Gluttony, and Vortex's girlfriend. At first, Loona doesn't enjoy her time there because she feels like she doesn't fit in. But, when Blitzo arrives and competes against Beelzebub in a drinking contest, she begins to enjoy herself and makes some friends. After Blitzo ended up drinking too much, Loona takes him home, and comforts him when he believes he's gonna die alone.

"Seeing Stars"
Suggested by Moxxie for Blitzo to have a talk with Loona about her attitude with clients, Loona herself doesn't take it too nicely and even beats Blitzo, but leaves him alone angrily after he threatens to replace her (obviously a bluff). Later on, Loona searches for Octavia all around Las Vegas. When she finds her, Loona comforts Octavia about her daddy issues, saying that even though it may seem that dads don't care about you, they really do.