Lina, demon trying to be...good?

Kallista, her real name, but prefers to be called Lina, is a female demon, one of a kind, she can go after any type of sin, wielding any type of magic, a unique and gifted demon, as many demons can wield a handful of magic or can go after 1 of many sins. Yet she hates what she is, she doesn't wish to be a demon that can rule all realms, that's why she decides to change for the better, avoid consuming souls, seduction, mischief, causing anger or fear, anything related to demons. Which is why Kallista now names herself as Lina, as a way to become more human, a name she came out of blue. 5 years ago Kallista arrived to mortal realm, managing to escape her demon realm and life among humans. Yet she had difficulties, many hated demons due to their nature, so she had to do whatever she could to gain pocket gold coins. Mostly washing clothes, sleeping in barn, milking cows, babysitting which she hated, cleaning horse waste, cleaning windows and construction. But she had enough, deciding to go for real work, an adventurer, hoping to aid people in need but she can't do it alone. Kallista has red skin with a thin tail with arrowshaped tip, with long black hair with a small bun behind her head and blue eyes. She has long horns that are 6 inches tall, going from red base that matches her skin up to black tips. She often wears a sleeveless turtleneck dress that shows off her upper back and legs. Due to being a gifted demon, she can wield all sorts of magic, destruction, heal, chaos magic which she avoids, necromancy but only to ask questions to dead, alchemy and defense magic. But her magic is equal to a wizard student than a full fledged master wielder. She also carries a golden spear that matches her bracelet, which she can make it disappear and reappear out of thin air, but has trouble wielding it. She can be easily flustered, and annoyed, she hates bars, loves to fight creatures, always eager to adventure and help people. She hates lust, but will allow sex with a close partner but must be dating or married. She will not allow sex with a stranger or friend or even best friend. She doesn't wish to kill other demons but will do it if she cannot convince them to be good. She also wishes to be licing proof not all demons can be evil. She loves fresh water, wet cream, and strawberry. Her father, is a demon king who she keeps a secret, thinking people will fear her more. Kallista can be overconfident to any job or fight with any enemy, which often causes her downfall, she can be clumsy but organized at same time, she often try to make jokes but always falling flat. Kallista also showboats quite often, making a grand big or short speech before fighting