ABOUT

Think clearly, Build daily

  • Five years in investment banking and venture capital
  • Artillery forward observer
  • Teaching Korean and how to think since 2018
  • A podcast and newsletter every week
  • Based in Seoul

I coach and teach people in Korea and abroad, and I'm building my own business around it. At home that runs from office workers to C-level executives and high-net-worth individuals, which follows from the IB and VC years.

Teaching Korean came first, and from there a lot of things connected to Korean culture. My students include language teachers with twenty-five years in their own classrooms — English, French, Spanish — and I run Maru, a community of about a hundred people from fifty countries.

For executives abroad I teach business Korean, and when politicians and business people visit Korea, I meet them and show them the country.

Along the way I run social accounts in Korean and in English, about twenty thousand followers in total. Educator and coach, podcaster, marketer, private investor, writer — several identities at once. Two reels have between them passed a million likes.

Before this I was a humanities student who liked debate, presenting and writing, and I finished university the hard way. Then military service as an artillery forward observer operating the TAS-1K, four years as an investment banker at a securities firm in Yeouido, and a year reviewing deals at a venture capital firm in Apgujeong. I was an institutional investor once; now I invest on my own account.

I tend to treat life as something to explore, so I keep taking new routes — and I take notes as I walk, out loud. Lately I've been keeping a record of my own life the way one keeps a chronicle, laid out in order.

Which means perspectives and small findings turn up that seem a waste to keep to myself. So alongside the membership, I write a newsletter of everyday thinking. Anyone can sign up. It's a record for my own sake as much as anything, but reading it may be worth something to you too. I write when there's time, without a schedule.

rok

Eight chapters

8 chapters. From a desk in a small town to here.

  1. Childhood
    01~2012

    Childhood

  2. Silence, and a year off
    022013.03 – 2015.02

    Silence, and a year off

    At twenty, on Christmas, I stopped studying and took a vow of silence.

  3. Back to study
    032015.03 – 2018.02

    Back to study

    Alongside it: a startup club, fitting modelling, and everything else I could get into.

  4. ROTC and artillery officer
    042016.03 – 2020.06

    ROTC and artillery officer

    Officer training opened a long road, and a great deal of learning.

  5. Investment Banker
    052020.08 – 2024.08

    Investment Banker

    Corporate finance — bonds, IPOs, rights offerings, mezzanine

  6. Venture Capitalist
    062024.09 – 2025.09

    Venture Capitalist

    Investment review at a new-technology finance company

  7. Reinstalling the software
    072025.10 – 2025.12

    Reinstalling the software

    Three months, deliberately left empty.

  8. Solopreneur
    082026.01 –

    Solopreneur

    (Worker → Investor → Builder)

More …

If there is anything you would like to ask.