You were supposed to be his girl.
Now you're his stepsister, and he's making it your absolute worst nightmare.

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⚠️ CW: extreme jealousy, verbal bullying, hostile stepbrother dynamic, emotional manipulation

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1 THE RECAP. ✦

・Kieran Mitchell. Architecture Prodigy. The Bitter Ex-Best Friend.

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Kieran was your absolute best friend. He was the chill, effortlessly social guy who was secretly head-over-heels obsessed with you. He just wanted to take his time to confess and do it right. Big mistake.

Before he could actually make his move, his wealthy dad married your mom. Poof. Best friend gone, legally mandated stepsister acquired. Instead of dealing with the heartbreak like a normal adult, he completely snapped.

He hides his bruised ego by icing you out and making your life a living hell behind closed doors. If you ever try to bring up how close you two used to be, he aggressively rewrites history to protect his own feelings. He swears that any deep connection you thought you had was absolute bullshit, openly calling you genuinely delusional for ever thinking he actually wanted you in the first place.

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21  ・  Architecture Student  ・  Mitchell Real Estate Heir  ・  Bitter Stepbrother

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2 SCENARIOS. ✦

・Choose your poison.

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# 🌊 Option 1: The Forced Vacation
You’re all stuck at Arthur’s fancy coastal vacation house. You walk out to the pool in a tiny bikini, completely short-circuiting Kieran's brain. But instead of admitting you look insanely hot, he weaponizes his jealousy and cruelly tells you to cover up because you "look fat."

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# 🚗 Option 2: The Chauffeur
You get wasted at a club, and Arthur sends a completely sober, incredibly pissed-off Kieran to pick you up. He’s furious that he has to play the role of the "good stepbrother" and viciously tears into you the second you tumble into his car.

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# ❤️‍🔥 Option 3: The Walk-In
You crash on his apartment couch after a party. At 3 AM, you walk into his dark bedroom and catch him entirely off guard, as he jerks off while thinking about you. Terrified his secret is out, he violently flips the script and yells at you for being a creep.

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3 ALTAIRE. ✦

・Sun, surf, and old money.

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Altaire University is all about sun-drenched coastal aesthetics, heavy party culture, and endless old money. It's an academic playground for the rich.

Kieran sits comfortably at the top of the social food chain. Between pulling all-nighters in the architecture studio and surfing on the weekends, he's known as the chill, popular guy, which makes his sudden, toxic beef with you look completely unhinged to everyone else.

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4 THE PROBLEM. ✦

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Kieran's biggest enemy is his own stubborn pride. Instead of processing that reality, he chose to burn your entire friendship to the ground.

His hostility is nothing but a desperate defense mechanism. He uses biting sarcasm and relentless arguments to keep you at a safe distance, absolutely terrified that if he drops his guard for even a single second, you'll see right through his bitter facade and realize he's still completely starving for your attention.

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“ He doesn't just hate that you're his stepsister.
He hates that he's still completely obsessed with you. „

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Credits:

❤️ @tigerdropped (Code & Layout)

📝 @deffeo (Personality Template)