Congrats on the Bookstore Grand Prize. Now, What's Your "Admin Work Grand Prize"?
The 2026 Japan Bookstore Grand Prize has been announced. The winner: Ryo Asai's In the Megachurch.
Megachurch—a massive church. Tens of thousands of followers, a swelling organization, and operations growing ever more complex.
…Sound familiar?
When independent tutors take on more students, something absurd happens: they spend more time on admin than actually teaching. Ryo Asai portrayed the distortions of a megachurch—but could similar distortions be lurking in your spreadsheets?
The True Face of "Mega Admin" for Independent Tutors
Once you pass five students, admin work grows exponentially.
- You spend 3+ hours staring at Excel at the end of every month
- A parent asks "How many lessons were there last month?" and you panic
- Your invoice format is slightly different for each student
- You verify bank transfers by checking your passbook one entry at a time
- Tax season means digging through a full year of scattered data
Bookstore staff read hundreds of books a year to choose the Grand Prize winner. You, too, devote hundreds of hours a year to admin work. The difference? For bookstore staff, that IS the job. Your job is teaching.
And the "Automation Grand Prize" Goes To…
The Bookstore Grand Prize is decided by votes from bookstore staff across Japan. So what about the Grand Prize for tools that rescue tutors from admin work?
…If you'll indulge us, here are the nominees.
| Nominee | Monthly Cost | Auto Invoice Generation | Google Calendar Sync | Data Storage |
|---|---|---|---|---|
| Manual Excel | Free | Manual | None | Local PC |
| Generic Cloud Attendance Tool | From ¥3,000/mo | Yes | Partial | Third-party servers |
| Kagemusha System | ¥500/mo | Auto PDF Generation | Full Sync | Your own Google account |
And the winner is… need we say more?
3 Steps to Automate Your Admin with Kagemusha System
Add lessons to Google Calendar
Just add events to your calendar as you normally would. No special formatting required. Student name, subject, and time automatically become your lesson records.
Hit the "Tally" button at month-end
All lessons are automatically compiled in a spreadsheet. Lesson count, total hours, and billing amounts for each student—all in one view. Zero manual entry.
PDF invoices are generated automatically
Professionally formatted PDF invoices are auto-created for each student. Ready to send directly to parents. No more "How many lessons were there last month?"
Before / After: Breaking Free from Mega Admin
Friday, end of the month. You cross-reference your calendar and notes to count lesson hours for 15 students. Manual entry into Excel. Create each invoice in Word, one by one. Convert to PDF. Attach to emails and send. Time required: 4–5 hours. Lesson planning during that time: zero.
Friday, end of the month. Hit the tally button in Kagemusha System. Review the PDF invoices and send. Time required: 15 minutes. Use the freed-up 4 hours for lesson planning. Or catch a movie (the new Detective Conan film opens today, apparently).
"But I'm Not Comfortable Storing Data Externally…"
We get it. That concern is valid.
With Kagemusha System, all your data stays entirely within your own Google account. Nothing is sent to external servers. Your Google Calendar events, your spreadsheet tallies—everything lives inside your Google Drive.
In Ryo Asai's novel, the megachurch's collection of followers' personal information is portrayed as deeply unsettling (so we hear). Kagemusha System is the opposite. Your data never leaves your hands.
Put an End to Mega Admin—Starting Today
Bookstore Grand Prize winners get prime shelf space and reach countless readers.
But no one sees your admin struggles. No one gives you an award for wrestling with spreadsheets alone late at night at the end of the month.
So save yourself. For ¥500 a month.
Setup takes 5 minutes. Using just Google Calendar and Google Sheets, fully automate lesson tracking, attendance tallying, and PDF invoice generation. An admin automation tool built for independent tutors.
Winning the Bookstore Grand Prize is hard. Winning the Admin Work Grand Prize is easy. Entry starts at ¥500/month.
Still managing tutor attendance manually?
Discover Kagemusha System