In GNU Emacs 29.4 (build 2, x86_64-w64-mingw32) of 2024-07-05 built on
 AVALON
Windowing system distributor 'Microsoft Corp.', version 10.0.19045
System Description: Microsoft Windows 10 Pro (v10.0.2009.19045.5131)

Configured using:
 'configure --with-modules --without-dbus
 --with-native-compilation=aot --without-compress-install
 --with-sqlite3 --with-tree-sitter CFLAGS=-O2'

Tatsu Takamaro <tatsu.takamaro@gmail.com> writes:

tutorial--lang is a variable defined in ‘tutorial.el’.

Its value is "English"
Local in buffer TUTORIAL; global value is nil

Tutorial language.

  Automatically becomes buffer-local when set.

Thanks, this seems normal.  Which version of emacs are you running?
What gives "M-: (emacs-build-description)"?