いろんなフォントで「root_system」変換
Zen Old Minchoroot_system
Yusei Magicroot_system
M PLUS 1root_system
Shippori Antiqueroot_system
Yuji Mairoot_system
Dela Gothic Oneroot_system
DotGothic16root_system
Train Oneroot_system
Hira Minchoroot_system
Potta Oneroot_system
Reggae Oneroot_system
Stickroot_system
Zen Kurenaidoroot_system
Kosugi Maruroot_system
Rampart Oneroot_system
Hachi Maru Poproot_system
New Tegominroot_system
RocknRoll Oneroot_system
Kaisei Decolroot_system
「root_system」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
