Almost all the Japanese lyrics of Kaji Meiko's "Shura no Hana" (Flower of Carnage) on the internet have the same mistake in the first line of the third verse (shown in red below).
I short, "Iin na naomosa" does not have any meaning in Japanese.
The correct words are: "Inga na omosa"
（いんがな重さ, or in Kanji: 因果な重さ）
Some detailed explanations are written in the following two articles.
* * *
"Shura no Hana" (Flower of Carnage)
Shindeita
Asa ni
Tomorai no
Yuki ga furu
Hagure inu no
Touboe
Geta no
Otokishimu
Iin na naomosa => Correction: Inga na omosa
Mitsumete aruku
Yami wo dakishimeru
Janomeno kasa hitotsu
* * *
