いろんなフォントで「cavern」変換
Zen Old Minchocavern
Yusei Magiccavern
M PLUS 1cavern
Shippori Antiquecavern
Yuji Maicavern
Dela Gothic Onecavern
DotGothic16cavern
Train Onecavern
Hira Minchocavern
Potta Onecavern
Reggae Onecavern
Stickcavern
Zen Kurenaidocavern
Kosugi Marucavern
Rampart Onecavern
Hachi Maru Popcavern
New Tegomincavern
RocknRoll Onecavern
Kaisei Decolcavern
「cavern」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
