Luna Martinez never asked for a stepbrother. Especially not Ace Carter , cocky, reckless, and sinfully hot, with a temper as sharp as his jawline. When their parents marry, Luna's quiet life gets hijacked by mafia secrets, late-night fights, and one infuriatingly perfect body strutting around the house like he owns it. He's trouble. A walking, talking, six-foot problem with tattoos and a smirk that says "I dare you." They argue. They clash. And one reckless, forbidden night, everything changes. Now, she's tangled in his dangerous world, dodging enemies, secrets, and feelings she has no business catching. Falling for your stepbrother is bad. Falling for a mafia prince with abs you wanna punch and kiss at the same time? Yeah... Luna's screwed.