f(x) = y

Every pain is x. We build f. The result is y.

Pain killers, not vitamins.

Too many tools. Each one demands its own logic, its own structure, its own way of working. You became the translator.

AI was supposed to fix this. Instead, it forgets. It loses context. It asks you to explain again. This isn't failure. It's worse — false hope, on repeat.

The answer isn't connecting fragments. It's integration from the ground up.

iOS didn't connect the phone, camera, and music player. It made them one. Then an ecosystem emerged.

We're doing the same for AI.

f(x) = y — that's our name, and our method.

Every x is a pain someone actually suffers. We build f — the function that resolves it. The outcome, y, is a product that didn't need a pitch because the problem was already real.

Founded in Seoul, 2020. We don't start with hypotheses. We start with pain we've lived through ourselves — then engineer the smallest function that eliminates it.

Pain killers, not vitamins. That's not a slogan. It's the filter every product must pass.

Superself

The Agent Operating System. Personalized-model-driven AI-native knowledge management. Automatically connects scattered context and proactively surfaces what matters.

superself.us.spfn.app

Superfunction

Full-stack framework for AI applications. Connection pooling, transactions, and background jobs — all in a single Next.js project.

superfunction.xyz

SuperCloud

Deploy with git push. Kubernetes-based per-tenant workload platform powering every Superfunction app.

Coming Soon

Team

RayFounder & CEO

  • Blex CTO — real-time messenger serving 100k+ concurrent users
  • DeepBrain AI — chatbot development team lead
  • SK C&C R&D — full-stack developer

KunaHead of Design

  • LINE — LINE Bank design system across Indonesia, Japan, Thailand & Taiwan
  • Howbuild — B2B SaaS platform UX for the construction industry
  • Planetarium — staking & launchpad product UI/UX for WNCG

BugEngineer

  • Wrtn Technologies — no-code AI workflow builder & agent orchestration platform
  • Planetarium — Web3 staking & gacha event platform on Ethereum & BNB Chain
  • Presto Technology — crypto derivatives exchange frontend from zero to launch

BlairMarketing

  • Global marketing & CX management