My nihon is scratchy, but it's better then nothing I guess. It means something along the lines of "because you're by my side (/with me)" depending on the setting.
"Kyo Kara Maoh!" is a phrase that means "Demon King From Today [Onward]!" which is a series of Japanese light novels. These were written by Tomo Takabayashi.
This does not appear to be Japanese.
There are several different words read as kara in Japanese:kara = empty, vacant (written with a single kanji)kara = from, after (spelled out in kana)kara = because (spelled out in kana)kara (with a long second vowel) = colour
"Byouin" is a Japanese phrase and in English it means "Hospital"
"Tanjoubi" is a Japanese phrase and in English it means "Birthday"
"Asu" is a Japanese phrase and in English it means "Tomorrow"
"Kinou" is a Japanese phrase and in English it means "Yesterday"
and doesn't yatta mean something like that?
what does it mean in English and i may be able to help you
Demon means Oni in Japanese also mean folklore.
"Dokoe ikimasuka" is a Japanese phrase and in English it means "Where are you going?"
"Who did you learn that Japanese from?"