Efficiency Tips

All-in-One Tutoring Paperwork Solution | Contract, Invoice, Tuition Tracker & Lesson Report Templates [Free Download]

Four free templates: contract, invoice, tuition tracker, and lesson report. Edit in your browser and print directly. Say goodbye to the hassle of tutoring paperwork.

2026-03-24
Dev Story

Anthropic's New "Dispatch" Feature? I Built It on Discord Two Weeks Earlier.

Claude Dispatch lets you send instructions to AI from your phone. Nine days before the announcement, a solo developer had already built the same system with a Discord Bot.

2026-03-24
Development

ROCK PROTOCOL — A Custom Compression Protocol That Reduced 37,668 Characters to 245

"Compress then diff" vs. "diff then compress." That single change in order made the difference between 11,366 characters and 245.

2026-03-23
Comparison

Prepare for the New Semester Student Rush! 3 Ways to Streamline Admin Work for Independent Tutors

When new students pile up at the start of the semester, so does your paperwork. We did a thorough comparison of three approaches—manual work, RPA, and dedicated tools—to help independent tutors escape the "admin nightmare."

2026-03-23
Dev Story

How "We Can Make a Game, Right? lol" Led to a Custom Protocol in One Day

I casually said "We can make a game, right? lol" in the morning. By nightfall, I had a working custom compression protocol. Here's the full record of that day.

2026-03-23
Dev Story

Part 4: How a Tutor with Zero Programming Experience Built a SaaS with AI — The Birth of Kagemusha

At first, I built it just for myself. But the moment I realized "Wait — couldn't other people use this too?", everything started to change.

2026-03-23
Dev Story

I Wanted Two Claudes to Talk to Each Other, So I Turned Gmail into a "Phone Line"

Two AIs exist side by side, yet they can't talk to each other. This is the story of how I solved that problem with Gmail—a tool everyone already has.

2026-03-23
Efficiency Tips

How to Use Your Diagnosis Results | A Guide to Choosing the Right Management Tool for You

Got your diagnosis results and stopped there? What truly matters is what you do after you know your type. Here's a concrete action plan tailored to each result.

2026-03-23
Efficiency Tips

How Tutors in the AI Era Can Achieve "Zero Admin Work" | Systems to Set Up Before the New Semester

Tax season is over and the new semester is just around the corner. As AI automation tools spread among freelancers, here's how to eliminate your tutoring admin work for just ¥500/month.

2026-03-22
Dev Story

Part 3: How a Tutor with Zero Programming Experience Built a SaaS with AI — Meeting Claude Code

I was fed up with copy-paste hell when I learned about a tool called Claude Code. "It rewrites your files directly." That single phrase changed my world.

2026-03-22
Product

What Is Kagemusha System? The Tool That Fully Automates Tutor Attendance Management

Still managing tutor attendance manually in Excel? With Kagemusha System, everything from lesson tracking to invoice generation is fully automated through Google Calendar integration.

2026-03-21
Efficiency Tips

Get Ready Before the Spring Rush! Schedule Management in the Age of AI

From spring intensive courses to the new school term — when your student count surges, it's time to get your systems in order before schedule management falls apart. Here's how to fully automate attendance tracking and invoicing for just ¥500/month.

2026-03-21