掲示板
Keiji Board
Coming soon
A quiet notice board for the dojo. The sensei posts once; the class is notified — no group text, no contact lists.
A short walkthrough of the board.
告
Post to the board
Broadcast to the whole class, or a chosen few. Students subscribe — you never hold a phone number.
達
Honest reach
See how many will actually be reached before you post — so you know when to send a note the old way too.
代
Hand off to a sub
Give a substitute a time-boxed web link. They post from a browser, see no student details, and it expires on its own.