How to read: まるひ
Pronunciation: 
Same names and idioms in reading:
丸秘
Names and idioms with total stroke of 14:
もの哀し 水浴 采光 恍乎 嘞
Names and idioms similar to マル秘:
秘紋 秘孔 秘川 水秘 秘密会議
Yojijukugo(idioms with 4 Kanji characters) including マル秘:
奥義秘伝 黙契秘旨 秘中之秘