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TBCJ Launches “TB-Chan” Powered by Kotae to Support Japan’s Young Entrepreneurs at Scale

By Kotae Marketing Team

August 04, 2025

TBCJ Launches “TB-Chan” Powered by Kotae to Support Japan’s Young Entrepreneurs at Scale

A collaboration between Teenage Business Contest Japan and Tokyo Techies brings enterprise-grade chatbot support to students nationwide


Teenage Business Contest Japan (TBCJ) has partnered with Tokyo Techies to launch TB-Chan, a custom-built AI chatbot powered by Kotae, Tokyo Techies’ enterprise-grade platform. Designed to scale support without scaling headcount, TB-Chan is already transforming how students, judges, sponsors, and media interact with Japan’s top high school entrepreneurship competition.

Following the 2025 contest announcement, TBCJ was met with a surge of questions—from rules and scoring systems to the use of government datasets like RESAS, RAIDA, and JETRO. With a volunteer-led team and limited technical resources, the organization turned to Kotae to keep communication responsive and efficient.

“We deployed TB-Chan in under 10 minutes—no code, just documents and a URL,” said Millie Gan, founder of TBCJ. “Now it handles everything from simple FAQs to complex academic theories like Nudge Theory. It’s like having an extra team member working 24/7.”

Why TBCJ Chose Kotae

Developed through extensive R&D, Kotae is built for real-world performance at any scale. Unlike consumer-grade chatbot tools, it delivers reliable answers, fast response times, and tight control over quality—all without requiring engineering expertise.

Key features include:

  • Accurate intent detection & smart routing: Kotae understands questions in context and directs them to the correct knowledge base, regardless of how they’re phrased.
  • Built-in safety guardrails: It blocks low-confidence or off-topic questions before they reach the user, reducing hallucinated answers and protecting sensitive information.
  • Retrieval-Augmented Generation (RAG): Kotae dynamically selects the best vector database and LLM per deployment, with quick retraining to reflect real-time updates.
  • Enterprise-grade performance: With asynchronous retrieval, caching, and model optimization, responses stay fast—even under load.
  • Low-code, rapid setup: Anyone can deploy Kotae in minutes. More advanced integrations (voice, decision trees, CRMs) are available for organizations with complex needs.

“Kotae was built so teams of any size can launch fast and stay reliable under pressure,” said Duc Doba, Founder and CEO of Tokyo Techies. “TBCJ is an ideal use case—proof that great technology doesn’t have to be complicated to make an impact.”

Measurable Impact, National Scale

Thanks to TB-Chan, TBCJ now handles hundreds of daily questions with no added overhead—freeing up time to mentor finalists and engage new sponsors. Students benefit from instant, consistent answers; the team benefits from fewer emails and greater focus.

The TBCJ Final Contest takes place on 7 August 2025 at The EGG in Tokyo’s Shin-Marunouchi Building. Finalist teams will pitch their ideas to judges from top universities, leading companies, and public institutions.

Experience TB-Chan or view finalist projects at:
🌐 www.tbcj.net

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