U+A666 CYRILLIC CAPITAL LETTER SOFT EM

The Unicode character U+A666, officially named CYRILLIC CAPITAL LETTER SOFT EM, was introduced in Unicode version 5.1. It is part of the Cyrillic Ext B block, which belongs to the Basic Multilingual plane.

Categorized technically as a Uppercase Letter, this character typically falls under the Cyrillic script. In terms of text layout and rendering, the glyph is not a composition and has no designated width 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.