fonts-noto-cjk software package provides No Tofu font families with large Unicode coverage (CJK), you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fonts-noto-cjk
fonts-noto-cjk is installed in your system.
Make ensure the fonts-noto-cjk package were installed using the commands given below,
$ sudo dpkg-query -l | grep fonts-noto-cjk *
You will get with fonts-noto-cjk package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Fonts |
| Package | fonts-noto-cjk |
| Version | 1:1.004+repack2-1 |
| Description | No Tofu font families with large Unicode coverage (CJK) |
| Sub Section | Fonts |