Hyein Yoon from Korea shares how brands can approach Korea and Japan with stronger local insight and cultural context.

In this episode of Insights from Elsewhere, Cynthia Portugal speaks with Hyein Yoon, founder of HY Marketing in Seoul.

Hyein works across Korean, Japanese and English speaking markets, helping global brands understand how to enter Korea and Japan with more relevant positioning, research and communication.

The conversation explores why Korea and Japan are often grouped together, but behave very differently in practice.

Hyein discusses Korean speed, trend sensitivity and value expectations, compared with Japan’s emphasis on trust, loyalty and service. She also explains how platforms such as Naver, KakaoTalk, LINE and X shape local research, social listening and brand strategy.

The episode also covers AI, local search behaviour, single person households and the importance of observing markets in person.

We also talk about Nunchi (눈치), pronounced noon-chee, the Korean “mind reading”superpower that literally translates to “eye-measure”. It refers to the subtle art of listening, “reading the room,” and gauging others’ moods, emotions, and unspoken social cues to build harmony and adapt your behavior.

Episode Highlights:

• Why Korea and Japan require different research approaches despite being geographically close
• How Korean consumers respond to speed, trends, value for money and fast changing cultural signals
• Why Japanese market entry depends heavily on trust, loyalty, hospitality and long term relationship building
• The role of Naver, KakaoTalk, LINE, Yahoo Japan, Google and X in local insight gathering
• Why AI tools can help with market exploration, but should not replace local validation
• How Hyein uses observation, local meetups, search data and social listening to understand consumer behaviour

About the Guest

Hyein Yoon is the founder of HY Marketing, a boutique consultancy and market agency based in Seoul. She specialises in Korea and Japan market entry for global brands, working across Korean, Japanese and English speaking markets.

Her work focuses on local positioning, consumer behaviour, keyword strategy, content marketing and helping international companies understand the cultural context behind market decisions.