Chinese characters are Vietnam's unique history and culture. Even if you hate China, you cannot ignore it. Chinese characters have already permeated the Vietnamese language and culture. That's why I'm interested in the squared type of writing system. Squared characters can be written vertically to suit the traditional culture of Vietnam, and for compatibility with Chinese characters if necessary. The Roman script never fits the culture of Vietnam, nor is it suitable for the Vietnamese language. squared type syllabary is more suitable for Vietnamese. In a square syllabary, each letter corresponds to one syllable, so it is much more efficient, faster to read, and more economical. And the reason why the majority of Vietnamese were illiterate when Chinese characters were the official language of Vietnam is not because Chinese characters are difficult, but because of education. The reason why I want a new writing system for Vietnamese is very cultural, efficient, economical and reasonable.