いろんなフォントで「concave shape」変換
Zen Old Minchoconcave shape
Yusei Magicconcave shape
M PLUS 1concave shape
Shippori Antiqueconcave shape
Yuji Maiconcave shape
Dela Gothic Oneconcave shape
DotGothic16concave shape
Train Oneconcave shape
Hira Minchoconcave shape
Potta Oneconcave shape
Reggae Oneconcave shape
Stickconcave shape
Zen Kurenaidoconcave shape
Kosugi Maruconcave shape
Rampart Oneconcave shape
Hachi Maru Popconcave shape
New Tegominconcave shape
RocknRoll Oneconcave shape
Kaisei Decolconcave shape
「concave shape」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
