Starting April 2026, cycling while using your phone can now incur fines of up to ¥12,000. Riding with a phone in one hand, cruising along with earbuds in—it's all out of bounds.

Tutors who saw the news and thought "what a harsh world we live in," hold on a second and look back at your own end-of-month routine.

Recalling your lesson at Student A's house while traveling to Student B's, doing time calculations in your head, then transcribing it all into a spreadsheet at night...

That's textbook "multitasking admin work." There's no fine for it, but it steals your time every single month without fail.

The Hidden Cost of "Multitasking Admin Work"
If a tutor charging ¥3,000/hour spends 3 hours a month on admin work, that's ¥9,000 in monthly opportunity cost. ¥108,000 a year. Nine times more painful than that ¥12,000 fine.

"Multitasking" Eats Up Your Brain's Resources

As research has shown, human multitasking lowers efficiency. The moment a corner of your mind thinks "oh, I need to record this later" during a lesson, your focus on the student in front of you drops—guaranteed.

This is exactly why independent tutors have the "too much to do" problem.

¥12,000
Fine for cycling while using your phone
¥108,000
Annual opportunity cost of multitasking admin work
¥500
Monthly cost of the Kagemusha system

Common "Multitasking Admin" Habits Among Independent Tutors

👩‍🏫
During lessons, I'm calculating in my head: "Today's 90 minutes, so that's ¥3,750..."
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Your students absolutely notice. They can tell you're not focused on the lesson.
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On the train between students, I jot down the previous lesson's progress in my phone notes.
💡
Train jolts mean typos. I can already see you trying to decipher them at the end of the month.
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Right before bed: "Wait, I haven't logged today's lesson!" and I jump out from under the covers.
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Now it's stealing your sleep too. That's not work anymore—it's a curse.

All of it disappears with just one thing: putting your appointments in Google Calendar.

3 Steps to Drop the "Multitasking"

Put your lessons in Google Calendar (you already do this, right?)

Just enter the student's name, time, and hourly rate. The habit of writing things in your calendar becomes your attendance record itself.

Connect the Kagemusha system (5 minutes to set up)

Just link it to your Google account. Spreadsheets and PDF templates are prepared automatically. No data leaves your account.

Do nothing at the end of the month

Calendar data is auto-tallied → reflected in spreadsheets → PDF invoices are generated. All you have to think about is your students.

Multitasking vs. Full Automation

ScenarioManual MultitaskingKagemusha System
During lessonsCalculating hourly rates in your headFocused on the student
While commutingLogging notes on your phoneDoing nothing
Before bedJumping up over forgotten recordsSleeping soundly
End of month3 hours of admin workJust check the PDF
Invoice errorsTend to happen when you're tiredZero, thanks to auto-generation

Frequently Asked Questions

I'm worried about linking my Google account.
The Kagemusha system doesn't send data to external servers. Everything is contained within your own Google account (Calendar, Spreadsheets, Drive). We can't see your data either.
Is it really only ¥500 a month?
Yes. Just ¥500/month. No additional charges, no optional fees. Compared to the ¥12,000 fine for cycling while using your phone, that's 24 months' worth.
I'm not great with computers—will this work for me?
Setup is just clicking through the on-screen instructions. It's done in 5 minutes. If you can use Google Calendar, you don't need to know anything more.

In Summary

Cycling while using your phone has been outlawed. Tutors' "multitasking admin work" hasn't been outlawed—but it's reliably stealing your time and focus.

When it's lesson time, focus on the lesson. Think only about your student. The admin work? It's already done while you sleep.

Take Back Your End-of-Month
The Kagemusha system is ¥500/month. Just put your lessons in Google Calendar, and attendance records, spreadsheet tallying, and PDF invoices are all fully automated.
Why not put an end to "multitasking admin work" as an independent tutor—starting today?

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