I also engage in activities under the nickname Soumame (IPA: [soːmame]). I am a university student living in Japan who loves new things (in terms of engineering).
This introduction is generated by LLM(Large Language Model).
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Meet So Tokumaru, also known by his nickname Soumame. He is a dynamic university student based in Japan with a deep-seated passion for engineering and exploring cutting-edge technology.
Recognized as a "Super Creator" in the prestigious Mitou Junior program, So has established himself as a brilliant innovator in the tech space. His project, TutoriaLLM, gained national acclaim at the App Koshien 2024, where he secured both the Technical Award and the Championship (Minister of Internal Affairs and Communications Award). His creative talent and technical prowess have also been celebrated through numerous awards at events like the Heroes League, the TOMODACHI Boeing Entrepreneurship Seminar, and the Minecraft Cup.
Beyond his competition success, So is a lifelong learner who loves sharing his knowledge. Through his blog, he provides insightful content ranging from technical tutorials—such as AI integration, web development with Astro, and Minecraft server management—to thoughtful reflections on the future of digital assets and life-logging.
Whether he is experimenting with XR glasses to build AI-powered cooking assistants or engaging in collaborative development, So Tokumaru consistently demonstrates a forward-thinking mindset. He is an inspiring young developer who is not only building the future but is also eager to help others navigate the evolving world of technology.
At "App Koshien 2024," an app development contest where middle and high school students from across Japan compete, the TutoriaLLM project advanced to the main tournament in the AI division and won the Technical Award and the Championship (Minister of Internal Affairs and Communications Award).
Support for the TutoriaLLM project, which was selected for Mitou Junior 2024, concluded with the results presentation on November 4. On the same day, we received the Visional Award as a corporate prize from Visional, Inc. In addition, at the end of the same month we were recognized as a “Super Creator,” an accreditation given to creators who produced particularly notable achievements.
A world created by Team Ippanjin, a team composed of members ranging from elementary to high school students who operate on the internet, received an Encouragement Award at the Minecraft Cup regional tournament held in Japan.
The Minecraft world I created was selected as second place in the International Senior division of the Minecraft Education Challenge, organized by the Malaysian Ministry of Education, Sunway Malls, and Microsoft.
I competed with several friends in a competition that tested Minecraft skills and problem-solving abilities; we were finalists and received the Impress "Kids and IT" Award.
I went to Coolest Projects Japan 2026, the first-ever exhibition event of its kind in Japan, so I'll introduce it here (it's scheduled to be held again next year).
I had the opportunity to speak at the Minecraft Cup, an event that helped shape who I am today. There were things I didn't get to say, so I'll include those here in this blog post.
I'm Sosei Tokumaru, a Mitou Junior 2024 Super Creator who just turned 19. Since it might look like I've been quiet online after finishing Mitou Junior, I thought I'd share a public update on what I've been up to, as far as I'm able to.
Until early 2024, I worked as an instructor for "Classmall Kids", an online programming school operated by YAGO Inc. I conducted lessons using the video game "Minecraft" and other formats.
Responsible for marketing as a student ambassador for the IDEACTIVE JAPAN PROJECT, a business contest organized by five companies—Microsoft, SoftBank, Meta, VISITS, and the IoT Business Co-Creation Lab. Organized events such as the "IDEA CREATION WORKSHOP", a hackathon for elementary school students using Minecraft.
A dialogue in which Soumame, who overuses AI agents even in part-time work, discusses the pain of costs and the dilemma of evaluating outcomes, and I lay out thoughts on securing funding and allocating responsibility.
I borrowed an inmo XR — Android-powered XR glasses — from Ukai, familiar from Mitou Junior, and did a little hackathon. After struggling with what to use it for, I built a cooking assistant to enjoy with an AI. I tried using the XR glasses to cook with AI, so I'll introduce that here.
I entrust my information to various platforms, and I thought it would be a waste for those accesses to be frozen after I die, so I'm thinking about measures to pass those assets on to future generations.
Operating a Minecraft server has become a fundamental skill it seems, so I'll jot down how to create one. (Source: Me) I hope to write a proper article someday, but for now, I'll just write it casually.
With the advancement of LLMs, it has become easier to verbalize human behavior and analyze conversations with others. However, I felt that none of it quite fit, so I thought about various aspects from both technical and usability perspectives.
Have you ever been banned from using AI tools like ChatGPT (LLMs) at school? For a while OpenAI and others published experimental software to detect text written by LLMs, but nowadays such tools are hard to find. Is it actually possible to reliably detect the use of an LLM?
Most of the rice I've eaten in my life was cooked by a Sanyo rice cooker. According to Google, the typical lifespan of a rice cooker is said to be 3 to 6 years, but I've been using mine for at least 15 years. What's going on???
I learned that some people claim LLMs are assisting suicide, and now that many people casually use these mysterious black-box LLMs, I want to think about how I should relate to LLMs.
From an era of buying books to learn to an era of asking AI. I consider the potential "stagnation of knowledge" that could result from the breakdown of returns to people who produce knowledge behind that convenience.