Today, The Super Mario Galaxy Movie finally opened in Japan. Worldwide box office has already surpassed ¥118.8 billion, and it's been #1 in North America for three straight weeks. Mario has left Earth behind — he's now making money on a galactic scale.

...And you?

At the end of every month, are you sitting there with a calculator in one hand, staring at a spreadsheet, muttering "This month, little Yuki had 4 lessons at ▲▲ yen, and Ken had 3 lessons at ×× yen..."?

While Mario is racing across the galaxy, you're still doing manual calculations on "Earth." Doesn't that feel a little sad?

Who this is for
Private contract tutors with 3 or more students. Those who spend 2-3 hours every month on end-of-month tuition calculations and invoicing. Honestly? You'd rather use that time to take on another lesson slot.

The Black Hole Called "Administrative Work"

When you work as a private contract tutor, you start to realize something.

"The admin work is harder than the actual teaching."

180 min
End-of-month tuition calculations & invoicing
90 min
Lesson reports to parents via LINE
60 min
Organizing progress notes for each student

That's a total of 5.5 hours sucked away every month. A complete black hole. Mario could grab a Power Star and finish the whole thing before you even got started — that's how wasteful this is.

Manual vs. Automated: A Galaxy Apart

TaskManual (Earth Level)Kagemusha System (Galactic Level)
Lesson RecordsHandwritten, entered later in batchesAuto-recorded from Google Calendar entries
Tuition Calculation3 hours with a calculator at month's endAuto-tallied in a spreadsheet
Invoice CreationMaking Word docs one at a timePDFs generated automatically
Parent CommunicationTyping out LINE messages each timeTemplates + auto-logging save time
Data StorageSomewhere on your PC...?All inside your own Google account

"But Automation Sounds Hard" — The Biggest Enemy

I get it. But hear me out. The Kagemusha System runs entirely within your own Google account.

Step 1: Connect with your Google account

You just use Google Calendar and Google Sheets. No new apps to download.

Step 2: Add lessons to your calendar

Add lesson schedules to Google Calendar just like you always do. That alone auto-accumulates your lesson records.

Step 3: One button at month's end

The spreadsheet auto-tallies tuition. PDF invoices are generated with a single click — done.

Setup takes 5 minutes. Shorter than it takes Mario to storm Bowser's Castle.

What Actual Users Say (Fictional, but Realistic)

👩‍🏫
I had 6 students, and tuition calculations alone were eating 3 hours every month. Hammering tiny numbers into a calculator like I was processing receipts — I genuinely hated it.
💡
After installing the Kagemusha System, month-end wraps up in 5 minutes. With the 2 hours and 55 minutes I got back, I was able to take on another student.
👨‍🏫
Honestly, when I heard "¥500/month" I thought "Wait, is that really enough?" — but it's literally cheaper than a single lesson fee.
💡
It's cheaper than a single Mario Galaxy movie ticket. And you get 5 hours back every month.

Before / After

Before

Month-end Sunday, you tell your family "Dad (or Mom) has a little work to do" and sit at your desk for 3 hours. Tapping away at the calculator, making invoices one by one, sending LINE messages to each parent individually. By the time you look up, it's pitch dark outside.

After

Month-end Sunday, you open the spreadsheet and confirm the tally in 5 minutes. Press the PDF generation button. Send. Done. You've got time to go watch *Mario Galaxy* with your family.

FAQ

I'm worried about sending data to an external server.
We don't. Everything runs inside your own Google account. Student personal information and lesson records never leave your Google Drive — that's how the system is designed.
I'm not great with computers. Will I be okay?
If you can add events to Google Calendar, you can use this. No complicated operations. Setup takes 5 minutes if you follow the steps.
Is ¥500/month really enough?
Yes. It's less than a single Mario movie ticket (¥2,000). Honestly, I use it myself and found it so convenient that I set the price purely with the goal of spreading it widely.

Conclusion: Head to the "Galaxy" Yourself

Today's Takeaway
Mario is earning ¥118.8 billion in space. You're losing 3 hours to tuition calculations. Which one is the right answer is obvious. It's time to automate student and tuition management for private tutors with 2026 technology.

With the Kagemusha System, for ¥500/month you get:

In 2026, while Mario races across the galaxy, there's no reason you should be the only one still calculating by hand on "Earth."

So come on — head to a universe (a.k.a. automation) beyond your imagination.

Still managing tutor attendance manually?

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