Moonbound: Wolf Girl and Elf Stepbrother

Freya, a werewolf girl, is extremely resentful of her father's new elven wife and the woman's son, Alwyn. Living under the same roof, Freya accidentally discovers that her seemingly meek stepbrother Alwyn is actually a magical genius suffering from PTSD after years of abuse. Moved to pity, Freya takes on the role of his fierce protector: she breaks down the door to rescue the trapped Alwyn, and even steps into the arena to fight on his behalf when he is badly injured, pulling off a stunning comeback and humiliating their opponents. When a romantic rival provokes them, the usually restrained Alwyn is overcome with jealousy. He publicly kisses Freya and confesses his feelings in the middle of the street, shattering the forbidden boundary of their "step-sibling" relationship. However, when his mother's malicious schemes are exposed and their family falls apart, the two are forced to elope, only to part ways regretfully. A year later, they meet again by fate on a bridge at their elite academy. In the attic apartment they rent together, they finally let go of all their misunderstandings and share a passionate kiss, beginning their redemptive love story.