Light is Karu.
Dark is Yami.
Note that Hikaru [Hikari is the girl version] is a name that also means light. I don't know of any names featuring the word for dark.
Direct translation would be "Kurai Hikari"(Dark = Kurai, and Light = Hikari)
Azaki
kuraihana
kuraikokoro
kuraitaiyo
Direct translation would be "Kurai Hikari"(Dark = Kurai, and Light = Hikari)
In Japanese, ranpu means light and kuro means dark. Kuro also means black.
Azaki
kuraihana
kuraitaiyo
kuraikokoro
ダークデーモン
The phrase 'dark storm' would be 暗い嵐 (kurai arashi) in Japanese.
kurai mori
'kurokute utsukushii'.
kurai harouiin
Japanese is the official language of Japan, spoken by almost all of its people. The translation of dark spirit into Japanese is kurai seishin.