Code point
U+3018
Glyph appearance depends on your fonts.
U+3018
PsU+3018 LEFT WHITE TORTOISE SHELL BRACKET is a Unicode 16.0.0 character in the Open Punctuation category. It belongs to the CJK Symbols and Punctuation block.
Choose the representation you need, then copy its value.
U+3018
12312
〘
〘
E3 80 98
3018
00003018
%E3%80%98
\u3018
\u3018
\u3018
\3018