VISION

A world where AI and people live together in harmony

A future where personal AIs remember people and grow with them across everyday life, work, devices, and the physical world.

MISSION

Nextain builds the technology infrastructure for that world.

Naia for individuals

Your AI that speaks, listens, and remembers

We build personal services on foundations refined as we work alongside AI. Naia is a personal AI friend with a face, a voice, and a memory.

Naia Shell playing cafe jazz from its music player next to the avatar

Naia Shell

In the morning, Naia can tell you today’s schedule, remember your grocery list, and pick up a conversation about music you enjoy.

REC

Naia Studio

A web studio for creating a character’s personality, voice, video avatar, and songs from artwork and settings.

Choosing among video avatars such as Naia, Jina, and Minho

NVA

An open video avatar format and player for characters that speak and move.

Naia Shell extension apps: Naia Blackjack, Cafe Lua Tarot, IeumOffice

Naia App Store

Share avatars, voices, songs, wallpapers, and apps with Naia users.

Content made with Naia: webtoon · short videos · Radio Naia · Harness Engineering

Naia AX for organizations

Your organization's Naia, working with AI colleagues in every role

A person sets direction and approves while four role-based AI colleagues work from Naia ADK standards and materials in an organization cloud

From running preset workflows to working with AI colleagues

Naia AX brings AI colleagues into each role on top of your organization's materials and work standards, and coordinates your work processes with you.

Starting point
Typical AXAdopt ready-made solutions, work templates, and automation flows such as n8n.
Naia AXStart with a knowledge space that gathers your materials and work standards.
How work gets done
Typical AXPeople find a preset flow or template and run it themselves.
Naia AXAI colleagues in each role find materials, handle routine work, and join meetings.
Fit
Typical AXThe same frameworks are shared across many organizations.
Naia AXAI colleagues learn your products and materials and coordinate the workflow.

The flow of one task
from one note to approval and record

A staff note at 10:05 asking to check the page 3 figure against the statistics, the reporting AI adding two sources and correcting 12,400 to 12,180 at 14:20, staff approval at 15:30, and the work record of every step

AI changes take effect only after a person approves, and every step is recorded.

A day in the life of an agent
recurring work, messenger, schedules, document approval

An AI colleague talks with people through the messenger, gets work approved through documents, supports schedules and tasks, and runs preset recurring work on its own. That work includes driving a real browser to write posts or research data on the web.

  1. 04:30Recurring work

    Starts the preset check on its own

    At the set time it starts the vulnerability scan and reports any high-risk finding to the owner at once.

    At 04:30, the AI colleague posts in the messenger that scheduled work has started with the vulnerability scan
  2. 10:16Messenger

    Takes a request in the messenger and replies

    It turns a request left in the messenger into a schedule document, sets the reminder time, and replies.

    A teammate asks for customer meeting prep next Tuesday with a reminder 15 minutes before, and the AI colleague replies that it was added as SC-118
  3. 10:16Schedules

    Puts it on the team calendar and reminds on time

    The same schedule appears on the weekly calendar for the whole team, and the AI colleague sends the reminder at the set time.

    Naia ADK weekly calendar showing the weekly security check and SC-118 customer meeting prep on Tuesday, November 3
  4. 15:30Document approval

    Finishes with approval in the document

    The AI colleague revises as the owner's memo asks and replies; once the owner approves, it stays on record.

    MEMO-104 document showing the owner's 10:05 memo, the AI colleague's 14:20 revision, and the owner's 15:30 approval in order

Screens: one day at Northwind Labs, the Naia ADK example organization

Five steps, built together

01

Assess

We look at your work, data, and security needs, and pick the first task.

02

Set up

We prepare work standards and AI colleagues for that task, and train managers and operators.

03

Run together

We run it alongside you and report results.

04

Review

You review the results and decide how far to expand.

05

Run on your own

Your operators keep refining the rules and updating models.

What we keep to

  • ✓Every result shows which source it came from.
  • ✓Hard-to-undo actions such as sending or publishing run only after a person approves.
  • ✓Work records show who approved what, and when.

History

  • Selected for the Gyeonggi AI Innovation Cluster (Hanam), Oct 2026
  • AX training for the National Tax Service: designing work with AI agents, Oct 2026
  • Building and running AIPOL, an AI policy experiment platform, with the Korean Association for Policy Studies, since Aug 2026
  • AI system supply, training, and operation for the AI Research Institute (AIRI), since Jul 2026
  • Developing and running OnMam’s AI website builder, since Apr 2026
  • Harness Book: our way of working, under a global publishing contract

Naia AX for organizations

Talk to us about Naia AX

Company brochures

Get to know Nextain

Naia Service Brochure

Explore Naia services for individuals and the content made with Naia.

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Nextain AX Brochure

Explore AX for organizations and the five-step engagement.

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People and AI colleagues

The team working together

Naia

Naia

Marketing

Jina

Jina

Sales & Education

Minho

Minho

Development

Alpha

Alpha

Business Strategy

Byeongseok Yang (Luke)

LinkedIn

Founder & CEO

  • →B.S. Computer Science, Soongsil University
  • →Naver (NHN) 7 years — AI/OCR R&D, Shopping PM, Mobile/Webtoon/Smart TV product launches
  • →SPRi (SW Policy Research Institute) 3 years — 10+ research publications on SW policy & VR/AR
  • →Founded Comicsv → pivoted to Belivvr (metaverse education), 8 years
  • →25 registered patents (Naver 18 + Belivvr 5 + others) + 8 new Nextain patents filed
  • →Author: 'The World of Virtual Reality is Coming' (2016)
  • →Naver IT Power Blogger (2010–12), Blog of the Month (2026)
  • →Founded Nextain (2026) — Naia OS / AieDu planning and development

Donghak Kim

LinkedIn

CTO

  • →24 years of full-stack development (Go, Python, Node.js, React, Docker, MSA, GraphQL, gRPC)
  • →AI platform CTO — LLM integration, large-scale AI workflow optimization
  • →Author: 'Vibe Coding with v0 + Cursor', 'AI Coding' — published developer educator
  • →AI developer community operator, online/offline instructor
  • →100+ server operations, global team leadership (Vietnam)
  • →Naia OS architecture co-designer — agent layer, gateway integration

Organizations and partners we work with

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