いろんなフォントで「vtn」変換
Zen Old Minchovtn
Yusei Magicvtn
M PLUS 1vtn
Shippori Antiquevtn
Yuji Maivtn
Dela Gothic Onevtn
DotGothic16vtn
Train Onevtn
Hira Minchovtn
Potta Onevtn
Reggae Onevtn
Stickvtn
Zen Kurenaidovtn
Kosugi Maruvtn
Rampart Onevtn
Hachi Maru Popvtn
New Tegominvtn
RocknRoll Onevtn
Kaisei Decolvtn
「vtn」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
