いろんなフォントで「cast_on」変換
Zen Old Minchocast_on
Yusei Magiccast_on
M PLUS 1cast_on
Shippori Antiquecast_on
Yuji Maicast_on
Dela Gothic Onecast_on
DotGothic16cast_on
Train Onecast_on
Hira Minchocast_on
Potta Onecast_on
Reggae Onecast_on
Stickcast_on
Zen Kurenaidocast_on
Kosugi Marucast_on
Rampart Onecast_on
Hachi Maru Popcast_on
New Tegomincast_on
RocknRoll Onecast_on
Kaisei Decolcast_on
「cast_on」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
