This font is part of the Japanese Supplemental Fonts package. Go to Settings > Apps > Optional Features . Select Add a feature . Search for and install Japanese Supplemental Fonts .
The "NK-B" variant specifically stands for ew K yokasho (Textbook) - B old. Ud Digi Kyokasho Nk-b Font Download
Every glyph is crafted to minimize misreading. For example, the characters for “1” (一), “7” (七), and “9” (九) have distinct, unambiguous shapes. Hiragana and Katakana feature open counters (the enclosed spaces in characters like ‘あ’ or ‘の’) to prevent them from filling in at small sizes. This font is part of the Japanese Supplemental Fonts package
The font emulates natural pencil or felt pen movements, adhering to Japan’s educational curriculum guidelines. This helps learners see the correct directionality of strokes. NK-B Variant: Search for and install Japanese Supplemental Fonts
The "NK-B" designation in the name stands for specific design and weight attributes: UD Digi Kyokasho font family - Typography - Microsoft Learn
Assuming you have a valid license from Morisawa:
Ud Digi Kyokasho Nk-b Font Download: A Complete Guide for Educators & Accessibility