Use Cases

How do you bring AI into work and everyday life?

Feature articles on each AI, plus mini use cases focused on a single task. Real examples anyone can use โ€” no engineering degree required.

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Features

๐ŸŒŸFeature Articles

Long-form reads that dig into each AI and what it's best at. From the "why this AI, why now?" backstory to chapter-by-chapter guides.

Chappy (ChatGPT) Kuroko (Claude)
Feature 01

The "Doer" Era, Starting with Chappy & Kuroko

Copy-pasting from a chat window is old news. Push Codex / Claude Code / Claude Design / Images 2.0 to their limits and the quality of your work changes. With ChatGPT and Claude as your partners, go from advisor to doer.

๐Ÿ“– 5 chapters + bonus ๐ŸŽจ With comics โฑ 12 min read
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Gemi-chan (Gemini)
Feature 02

Gemi-chan: Your Strongest Partner in the Google Universe

Fused with Workspace, cutting your thinking costs with NotebookLM, taking on meetings and video alike. An all-rounder who can do a bit of everything โ€” every office worker on the Google stack should welcome her aboard.

๐Ÿ“– 6 chapters ๐ŸŽจ With comics โฑ 12 min read
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Papu-chan (Perplexity)
Feature 03

Papu-chan: From "Googling" to "Papu-ing"

From opening search results one by one and comparing them yourself, to AI sweeping the web and summarizing it all โ€” with sources. A thorough introduction to Papu-chan, the new standard tool for sales reps, researchers, and writers.

๐Ÿ“– 6 chapters ๐ŸŽจ With comics โฑ 12 min read
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Gro-chan (Grok)
Feature 04

Gro-chan: Your Partner for Real Talk and Real Time

Tired of safe, diplomatic answers? Meet Gro-chan. Wired straight into X for unbeatable real-time info, blazing-fast images and video, and even sensitive topics get through. For creators โ€” and everyone who wants the unvarnished truth.

๐Ÿ“– 7 chapters โฑ 10 min read
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Chappy (ChatGPT)
Feature 05

Chappy's Image Generation 2.0 Revolution: No Studio, No Editor Required

From "drawing what it's told" to "thinking and creating." The small yet enormous revolution that ChatGPT Images 2.0 (gpt-image-2) brought to the creative workflows of small shops and small businesses.

๐Ÿ“– 7 chapters + inside the revolution โฑ 12 min read
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Domo-chan (DomoAI) Shii-chan (Seedance)
Feature 06

Domo-chan vs Shii-chan: AI Video โ€” Casual Mass Production, or Polish for the Win?

Domo-chan (DomoAI) lets you retry again and again with rough prompts, while Shii-chan (Seedance) shines brighter the more detail you write. A friendly guide to choosing your video AI, told through a showdown comic.

๐Ÿ“– Comic + quick-reference chart โฑ 5 min read
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Cases

๐Ÿ’กMini Use Cases (by Task)

Each article walks you through the situation, how to ask, and the results. Start with whatever topic catches your eye.

Changing How Engineers Work

for engineers

It Really Works for Office, Sales & Management Too

for everyone

Hand Life's Little Hassles to AI

for everyday life
Important Notice

The risk of not using AI is now bigger than the risk of using it.

๐Ÿ’ก At OpenAI and Anthropic, the engineers themselves barely write any code by hand anymore

Let the AI write it, and shift yourself to review and direction โ€” if the very people building these tools already work that way, it's only a matter of time before everyone else changes too.

Japan's IT industry can no longer wave this off with "that's not us." Before worrying about the risks of using AI โ€” data leaks, accuracy, copyright โ€” we've entered the phase of facing the gap that widens by not using it.

The gap between people who touch AI and people who don't may be small in a day, but over months and years it opens into a career-sized divide. Rather than dismissing it as "not relevant," getting on the side that asks how to make it relevant is the most important call you can make right now.