Love What's Wrong with Secretary Kim? These Top Best Office Romance Korean Series 2025/2026

There’s a reason office romance K-dramas keep us coming back. It’s the tension, the banter, the mix of professionalism and undeniable chemistry. When it’s done right — like in What’s Wrong with Secretary Kim — it’s addictive.

Whether it’s a cold CEO hiding a soft heart, a quiet assistant with a bold secret, or two coworkers slowly falling in love over coffee and deadlines, office romance has a charm like no other.

In 2025 and 2026, this genre is thriving. From slow burns to flirty chaos, these shows balance love and ambition with just the right amount of spice.

Here are the top best office romance Korean series in 2025/2026 you’ll want on your watchlist:

1. CEO by Day, Crush by Night (2025) — Romance/Comedy

He’s the youngest CEO in the company’s history. She’s the only one who treats him like a normal person. Their late-night office run-ins start with small talk, but turn into secret smiles and stolen glances. A classic setup done right.

2. Deadline Lovers (2026) — Romance/Drama

Two team leaders, always competing. He’s logical. She’s passionate. They argue over every project… but when they’re forced to work overtime on the same deadline, sparks fly. Sharp writing and slow-burn tension make this one unforgettable.

3. Love in the Break Room (2025) — Slice of Life/Romance

This story takes place entirely inside one company floor. Different departments, different love stories — but all connected by one small break room. Funny, warm, and full of charm, it feels real and cozy.

4. Her Signature (2026) — Romance/Mystery

She ghostwrites for the company’s top execs. No one knows her face, but her words change lives. When the CEO starts falling for the anonymous writer behind his speeches, the truth starts to come out. Romantic and mysterious.

5. Behind the Desk (2025) — Comedy/Romance

He’s uptight and hates distractions. She’s the company’s mood-maker and always late. When she’s reassigned to be his assistant, chaos — and romance — begins. Pure fun with just the right emotional core.

6. Not in the Job Description (2026) — Romance/Drama

She’s a new hire with a strict “no dating at work” rule. He’s her mentor — and slowly falling for her. Quiet looks, shared elevators, accidental touches… this one’s for fans of slow tension that finally breaks.

7. One Floor Down (2025) — Romance/Healing

After a bad breakup, she transfers to a new office. The guy one floor down is kind, thoughtful, and has his own wounds. They bond over lunch breaks and late-night emails. A gentle love story about moving on.

8. Lunch Date at 1 (2026) — Romantic Comedy

They don’t talk in the office — but they’ve been dating secretly for months. This drama follows the challenges of keeping a relationship private in a gossip-filled workplace. Light, funny, and full of heart.

9. Crash Meetings (2025) — Romance/Drama

They meet during a company merger. He’s from the rival firm. She’s in charge of integration. They should hate each other… but can’t stop thinking about each other. Great chemistry and sharp dialogue.

10. Strictly Professional (2026) — Romance/Office Politics

They sign a contract: no emotions, just a fake office relationship to avoid family pressure. But fake dating doesn’t stay fake for long. This one brings all the drama — and all the feelings.

11. Copy That Love (2025) — Romance/Comedy

He’s the company’s best designer. She’s the new copywriter. They clash creatively — until they realize their best work happens together. Office romance with creative energy and hilarious misunderstandings.

12. The Last Email (2026) — Romance/Slice of Life

She writes a resignation letter. He reads it by accident — and can’t stop thinking about her. What starts with one email turns into something bigger. Quiet, thoughtful, and deeply emotional.