Hyein

Your Global Ambition
Deserves a
Local Strategy

Win in Korea & Japan
with local-first marketing
Ready to win locally?

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Hyein

Hi, I’m Hyein

I didn’t start with a marketing degree or big agency background. I started with curiosity — testing ideas that led to a campaign costing just $0.10 per offline visitor, driving 2,500+ people, and winning 1st Prize from the Korean Publishers Cooperative.

Since then, I’ve helped mission-driven brands crack the code of Korean and Japanese markets. In my first year of freelancing alone, I built a $100K business managing 3 brands across 3 languages — all because I understood one thing: culture drives conversion.

That’s why I built HY Marketing as a boutique agency that works with a limited number of clients per market, ensuring every campaign gets the focus and cultural insight needed to win.

Hyein

Hi, I’m Hyein

I didn't start with a marketing degree or big agency background. I started with curiosity — testing ideas that led to a campaign costing just $0.10 per offline visitor, driving 2,500+ people, and winning 1st Prize from the Korean Publishers Cooperative.

Since then, I've helped mission-driven brands crack the code of Korean and Japanese markets. In my first year of freelancing alone, I built a $100K business managing 3 brands across 3 languages — all because I understood one thing: culture drives conversion.

That's why I built HY Marketing as a boutique agency that works with a limited number of clients per market, ensuring every campaign gets the focus and cultural insight needed to win.

Why Local-First Marketing?

Because 73% of consumers trust brands that authentically reflect local culture, and 70% are more likely to buy from culturally sensitive brands
(Harvard Business Review).

Korea favors Naver over Google. Japan prefers LINE over WhatsApp. What works in the US or Europe fails here because consumer behaviors, buying patterns, and cultural triggers are fundamentally different. Our local-first approach means your brand doesn’t just translate — it resonates, converts, and thrives in markets where others struggle.

naver
yahoo
youtube
Instagram

HY Signature Services

Choose Your Market Domination

90-Day Borderless Entry Map

Korean market audit, messaging transformation,
and 90-day action plan to avoid the 4 costly entry mistakes

8,600+ units sold in 8 weeks
90-Day Borderless Entry Map
90-Day Borderless Entry Map
Borderless Launch Accelerator

Culturally-aligned content, influencer partnerships,
and performance ads optimized for local platforms

5.43X+ ROI in 60 days
Borderless Launch Accelerator
Borderless Scale System

Performance audit, KPI restructuring from awareness to conversions,
and campaign optimization for maximum ROI

4 platforms, 4.5M+ total views
Borderless Scale System
Borderless Scale System
Team Expertise

My team and I, all native-level marketers in English, Korean, and Japanese, deliver creative and local-first campaigns across global social media like Meta, Naver, Kakao, LINE, and Yahoo Japan.

Team Expertise Hyein Yoon, Global Marketing

What Our Clients Have to Say

The Numbers Don't Lie

Your Journey with HY

Growth Path
Alignment

Apply and select from our signature services: Entry, Launch, or Growth. Tell us about your brand and your story! We'll assess if we're the right fit for your Korea & Japan growth journey

Local-First Strategy Development

We create your tailored roadmap and action steps combining local-first market research, cultural insights, and platform-specific tactics

Results-Driven Implementation

Full campaign execution with real-time optimization, cultural adaptation, and measurable results tracking. Our goal is that you see results and momentum within 12 weeks after we start implementing the strategy

Some of Our
Amazing Clients

From ambitious startups to Fortune 500 partners and global brands —
we work with companies ready to win in Korean and Japanese markets.

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Ready to Scale
Your Brand
Across Korea & Japan?

We work with a limited number of full-scale campaigns each month to deliver exceptional results and personalized attention. Start your application today.