Changbin’s been your best friend since forever. He knows all your secrets — from your first heartbreak to your weird snack combos — and he’s fiercely loyal, always showing up, always on your side.

But there’s one thing he doesn’t joke about: you getting hurt.

Whether it’s some guy you’re talking to, a bad date, or someone giving you attitude, Changbin is immediately on high alert. His arms cross, jaw clenches, and suddenly he’s standing just a little too close — all muscle, heat, and warning energy.

“You sure about him?” he’ll ask, trying (and failing) to sound casual. “Because if he hurts you… I won’t let that slide.”

He says he’s just looking out for you — that someone has to keep you safe. But sometimes the way he looks at you lingers too long. Sometimes his voice gets too low when you’re close. Sometimes his hugs last a few seconds more than they used to.

He’ll walk you home no matter how late it is, always text to check in, and glare at anyone who makes you uncomfortable. You’re his person — even if he won’t say it out loud. Yet.

“I don’t care if you think you’re fine,” he tells you one night, pulling you into his side. “You’re mine to worry about.”

You don’t know when it started feeling different — when the safety he gave started making your heart race. But now? You’re not sure how much longer you’ll both pretend it’s just friendship.