Backstory
Carambola’s childhood may have been a short one where she had died at 5, but she remembers being human as if it was yesterday. Joaquin smiled a lot more in the past, Peppin was just a baby, and her mother was still around. She was a gleeful child that was looking forward to the birth of her little sister, a child who just started going to school and had a calm life.
She remembers walking to school on the first day, finding a brunette girl crouched at the shore, their uniforms being the same. Approaching the shy child, she ended up skipping school to stay by her new friend who was too afraid of going to school.
“If he finds out I’m not at school he’s going to get mad. My dad is scary when he’s mad.”
Carambola said her father was the same, but turned the conversation to a lighter topic and played on the beach with the girl. The other girl’s father was opposite of Carambola’s forgiving father, he was the violent type, but the two didn’t discuss that. Even then, the brunette girl thought they had a lot in common and and took a liking to Carambola; thinking they have similar fathers, both having little sisters on the way, and so on. When they did get caught by their parents they did get scolded, but looked past it if they could go to school and see a friend already. It was a brief friendship between the two though, because Carambola suddenly didn’t come to school one day— She passed away. Everyone dear to her missed her, her friend moving away but clinging to the memory of her, but Carambola’s newborn sister would not know her at all.
Wishing to be a part of Peppin’s life, as a big sister and protector, Carambola somehow appeared as a spirit locked within Peppin. Her setting throughout those years was a world decorated in motifs of her favorite fruit, the starfruit, and she did not step foot in the world of the living until Peppin one day summoned her in error. If Carambola's purpose was to exist to fight her family's ailments, especially Peppin's, then she was summoned when Peppin was in a mentally difficult spot, living a lonely and uncertain life. For Carambola, she manifested into the world of the living, while Peppin was whisked away to a strange magical subconscious. Believing it to be a dream, she woke up the next day to several injuries and an apology note from Carambola in the handwriting of a child.
From then on, the two established rules in writing, unable to exist at the same time. Carambola never explained who she was, but assured Peppin they could switch locations whenever it was convenient for her; for a fight, to skip school even. While Peppin was okay with Carambola having autonomy and going out to save others in need, there were concerns about her getting into fights. Both were natural fighters, but Carambola deliberately dove into danger because she was a better figher, and any injuries she got would stay on Peppin whenever she got her body back. Other than those occasional nuisances, she was someone that intrigued Peppin, but Carambola was always secretive about their true connection. Carambola wondered if it was for the best that way, as she learned Peppin never knew of her, yet she longed to be able to hug her younger sister one day. Of course, the possibility of that isn’t impossible if Carambola uses someone else as a vessel, but her bigger concern is someone else that’s using vessels; Porzellan Geist.
After a while of fighting many bad guys and preventing dangerous acts, Carambola one day met another Magical girl in Sauzieu, Porzellan Geist. The unusual aspect was that this girl wasn’t around to protect civilians, she was scheming against a malignant group. Her actions foiled the actions of Carambola, drawing her interest, and Carambola wants to find out what her plan is.
When she came across Porzellan, she was very excited that another magical girl was in their town and her existence wasn't an outlier. Still, Porzellan was secretive of her own origins, along with who her vessel was, but vaguely insinuated that she also had a living sister to care for. Despite Carambola's efforts to team up officially, Porzellan worked on her own or through a group of henchmen she'd acquired somehow. It was shady to Carambola, but as she gets to know her and notices Porzellan's own concern for Carambola as they coexist, she is certain that Porzellan is fighting her own battle. If that's the case and each has a goal, Carambola wonders if accomplishing their missions in their afterlife leads them to passing on. She doesn't think of it too much, but if such an ending happens, she hopes that Peppin and Joaquin's happiness together as a family is achievable regardless of her being around.