Malie's personality was likely intended inside the original work to be cute, quirky, and fun in how macabre and dark it is, but unfortunately, everything has consequences in the Calling, and these mostly harmless personality traits ended up furthering the rate at which Malie was stained black and joined the darkness. In particular, one of the root causes was not even related to her morbid traits, but also a feeling of directionlessness and apathy as a result of how powerful Akira was getting - which Akira was originally supposed to rectify by showing that he cares about her (rather than affirming her own self worth), which would eventually lead to them falling in love. However, in the Calling, this instead lead her to find direction and purpose via Kreuz and the Crossbones, which was not helped by how quickly she came to fall in love with Kreuz. In the original story, she showed regular interest in women on almost every occasion she would, being essentially a lesbian, but was of course intended to one day fall in love with Akira, and only because he showed her decent respect like a human being, so of course this would end up happening again when Kreuz did essentially the exact same things, while also being of a gender she had a greater preference for logically and also being a Demon, who she believed were cool even back in her homeworld life, despite how her job was to eliminate them both before and after becoming an adventurer. She had a love for monsters, demons, and the undead even back in her homeworld, and often bemoaned the fact they were so against humanity, wishing they could be allies instead, and whenever she read stories she usually rooted for the bad guy - harmless traits in the source where her fate was written in stone, but disastrous in the Calling where it lead her to empathize with and get suckered into the Crossbones due to their assortment of gnarly natures and unique, sinister designs and appearances. Even among the Crossbones - or perhaps especially among the Crossbones, she shows a love of things like insects, spiders, pumpkins, and other such generic halloweeny things - especially Skulls, which, lucky for her, are one of the central motifs and themes of the entire organization she was now a part of. She still is very much a hopeless romantic when it comes to cute girls, and she has a crush on pretty much every other Crossbone except for Roa (for obvious reasons) and Zero (who she is terrified of), though she has most pronounced crushes on Akane, Cross, and especially Kreuz, who she wants to marry, despite Kreuz herself not being very into it.