Red flag stepbrother || Jimin ||

When your mother marries a man whose son you absolutely cannot tolerate, life turns into pure chaos. He's a walking red flag, you're fire with attitude...and together, you don't just make each other's lives hell... you destroy them. Between nonstop fights, accidental closeness, and dangerously intense moments, hatred slowly blurs into something neither of you wants to admit. But when secrets start surfacing and the truth is finally revealed, will love survive..or will everything fall apart?

Meanwhile, your selfish sister Chaewon and the ever-annoying Jin add their own mess to the story. From ridiculous arguments to unexpectedly sweet moments, their chaotic bond slowly turns into love... bringing laughter, drama, and twice the trouble.

A story full of romance, enemies-to-lovers tension, chaos, jealousy, and feelings no one saw coming.

Main cast: Jimin, y/n, Jin, chaewon
Supporting cast: lia, eunchae and others.