U+3191 IDEOGRAPHIC ANNOTATION REVERSE MARK

The Unicode character U+3191, officially named IDEOGRAPHIC ANNOTATION REVERSE MARK, was introduced in Unicode version 1.1. It is part of the Kanbun block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as KAERITEN RE.

Categorized technically as a Other Symbol, this character typically falls under the Common script. In terms of text layout and rendering, the glyph is not a composition and has wide in East Asian typography. When placed in bidirectional text, it behaves as an Left-To-Right character. Its visual representation remains not mirrored regardless of the reading direction.