U+319A IDEOGRAPHIC ANNOTATION SECOND MARK

U+319A was added to Unicode in version 1.1 (1993). It belongs to the block Kanbun in the Basic Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script. It is also used in the scripts Han, Hiragana, Katakana.

The glyph is a Super composition of the glyphs . It has a Wide East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+319A behaves as Ideographic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

Kanbun or kambun (漢文, "Chinese writing") is a method of annotating Classical Chinese so that it can be read in Japanese that was used from the Heian period to the mid-20th century. Much Japanese literature was written in this style, and it was the general writing style for official and intellectual works throughout the period. As a result, Sino-Japanese vocabulary makes up a large portion of the lexicon of Japanese, and much classical Chinese literature is accessible to Japanese readers in some semblance of the original. The corresponding system in Korean is gugyeol (口訣).