いろんなフォントで「lower_cannon」変換
Zen Old Mincholower_cannon
Yusei Magiclower_cannon
M PLUS 1lower_cannon
Shippori Antiquelower_cannon
Yuji Mailower_cannon
Dela Gothic Onelower_cannon
DotGothic16lower_cannon
Train Onelower_cannon
Hira Mincholower_cannon
Potta Onelower_cannon
Reggae Onelower_cannon
Sticklower_cannon
Zen Kurenaidolower_cannon
Kosugi Marulower_cannon
Rampart Onelower_cannon
Hachi Maru Poplower_cannon
New Tegominlower_cannon
RocknRoll Onelower_cannon
Kaisei Decollower_cannon
「lower_cannon」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
