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KOENJA

Where Human Potential Meets AI

An AI innovation studio
that respects human will and insight

Grounded in a philosophy of respecting human will and insight,
MOSAZAIN plans and builds a wide range of AI services.

Human-led AI

We believe human thought and insight
set the direction of technology.

Technology does not replace people — human insight and imagination lead it. With that conviction, we build human-led AI services.

Every product we make runs as an independent brand, but its roots always lie in the context and values of its users' lives.

Ancient wisdom,
rewritten for the age of AI.

謀事在人 成事在天

Plans are made by man; their success lies with heaven.

Mo-sa-jae-in, Seong-sa-jae-cheon · A saying attributed to Zhuge Liang

謀事在人 行事在智

Humans craft the vision. AI executes the mission.

Mo-sa-jae-in, Haeng-sa-jae-ji · MOSAZAIN's reinterpretation for the age of AI

MOSAZAIN is inspired by an ancient saying attributed to Zhuge Liang, the strategist from Romance of the Three Kingdoms. We are made up of people who persist — crafting, imagining and working — even when we can't control the outcome.

We believe the spark of progress still comes from people — their judgment, creativity and ambition. MOSAZAIN exists to turn those sparks into impact, at scale, as an agile, AI-native organization.

Our core values

Expanding human potential, with AI as the tool.
To get there, we build every service around three values.

  1. TailoredTailored, Not Generic

    AI built for one person, not everyone

    We pursue specialized AI designed around each user, not general-purpose AI.

  2. Real LivesDesigned for Real Lives

    It starts from real people's lives

    Every product is grounded in the real lives, values and cultural context of its users.

  3. Human-LedHuman-Led AI

    AI that makes people's lives better

    Beyond implementing technology, we build AI that makes a positive difference in people's lives.

Our journey

Since our founding in October 2024, we have built and grown services by running small experiments quickly and often.

2026

  1. Launched AIROKU, an AI web novel platform for Japan

  2. Selected for three government R&D projects in a row

    KOCCA · Ministry of Culture, Sports and Tourism · Ministry of SMEs and Startups

  3. Moved headquarters and corporate R&D center (Nakseongdae Venture Startup Center)

  4. Filed four patents on core technologies

  5. Selected for an advanced GPU support program

  6. HeartFiction reached 100,000 users within ten months of launch

2025

  1. Selected for the Korean Angel Investment Association marketing support program

  2. Launched HeartFiction, a personalized AI web novel app, in Korea

    iOS · Android

  3. Joined Smilegate Orange Planet and selected for investment review

  4. Selected for KODIT's Newborn Penguin program

  5. Launched Serendipity Baby Names, an AI baby-naming app, in five English-speaking countries

  6. Renamed to Mosazain Inc. and completed a capital increase

  7. Established a corporate R&D center

  8. Moved to a co-CEO structure

  9. Built and launched an HR AI × SaaS platform

  10. Joined the Gangnam Startup & Job Hub Center

2024

  1. Selected for the Kyung Hee University and Sejong University Campus Town programs

  2. Raised angel investment

  3. Company founded

At MOSAZAIN, we talk about people before technology.

We believe technology should exist not to become smarter, but to make people's lives more meaningful.

A future centered on people, not technology.
Technology that creates meaning, beyond data.

Have something to build together?Let’s talk.

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