しゅうじ習字shuuji
1.
The practice of learning to write characters in an aesthetically pleasing manner, often emphasizing traditional brush techniques.
2.
The process of mastering the correct and beautiful formation of characters based on a model, typically through repetitive practice, which was historically part of language education in elementary and middle schools.
3.
A discipline focused on enhancing one's handwriting skills to achieve both accuracy and visual appeal, commonly associated with the use of calligraphy tools.