U+3189 HANGUL LETTER YO-I

The Unicode character U+3189, officially named HANGUL LETTER YO-I, was introduced in Unicode version 1.1. It is part of the Compat Jamo block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as HANGUL LETTER YOI.

Categorized technically as a Other Letter, this character typically falls under the Hangul script. In terms of text layout and rendering, the glyph is a compatibility 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.