◣ Seia Funayama · Chiba, Japan

SeiaFunayama.

“Stay hungry,
stay foolish.”
— Steve Jobs
Currently
Year 10 · Shibuya Makuhari
Building
AXYZ · Kythera Ventures
ECs
Competitive speech & debate
Hobbies
Studying ML · Finetuning LLMs · Gunpla · Hardware tinkering
Favorite food
Meat
On loop
National Treasure — Drake

◇ Chapter iii

My life,
thus far.

Six waypoints that explain how I got here — and where I'm pointed next. Keep scrolling to advance the chapters.

  1. ※ Chapter · 01 · Kyoto → Yokohama, Japan

    Roots.

    Born in Kyoto, but moved to Yokohama shortly after.

  2. ※ Chapter · 02 · Cupertino, California

    Crossing.

    In my years in Cupertino I fell in love with technology and entrepreneurship — and with the idea that you can just build the thing you wish existed.

  3. ※ Chapter · 03 · Shibuya Makuhari

    Prestigious high school.

    Accepted into a prestigious high school in Japan. The first time the work I put in actually compounded.

  4. ※ Chapter · 04 · International circuit

    Debate.

    Top 8 candidate for WSDC Team Japan '26. Rookie Finalist and 2nd Best Speaker at Keio Debate Open — and many more across the circuit. Years of reading suddenly had somewhere to go.

    ◆ 2024 → now

  5. ※ Chapter · 05 · EN2U · Japan

    Built EN2U.

    Co-founded a non-profit connecting youth in underserved Japanese communities with peer-led English education. Built the platform end-to-end.

    ◆ 2025

  6. ※ Chapter · 06 · AXYZ · Kythera Ventures

    CTO.

    Took on Chief Technology Officer at AXYZ and the Stratum AI solutions arm of Kythera Ventures. Currently shipping infrastructure for the people who shape the next decade of Japanese tech.

    ◆ 2026

◇ Chapter iv / activities

The four
things I actually do.

Debate, code, mentorship, and an early-stage CTO role. Each one feeds the others.

Debate

/01 — competitive results

⋯ and many more across the circuit

Programming

/02
◆ Programming · 9 projectsarchive

Code, shipped &
in progress.

A small but deliberate stack of tools — AI for debaters, an open-source motion archive, and the infrastructure under things like EN2U.

NPO Work

/03
◆ Non-profiten2u.vercel.app

EN2U.

A peer-mentorship network: 13–18 year olds teach English to other teens in underserved Japanese communities. I co-founded it and built the platform.

Visit site

Kythera Ventures

/04 — exec
◆ Executive · 2026 —Active role

Chief Technology Officer

Kythera
Ventures.

CTO at AXYZ and the Stratum AI solutions arm of Kythera Ventures — shipping infrastructure for the next decade of Japanese AI work.

AXYZStratum AIInfraTypeScript