[SHAD0W]

Ok so theres this Japanese song I really like, its totally not my style but I fell asleep listening to it on the plane. I've since heard it on TV as a theme tune to a post-WW2 TV program on NHK about 8am just after the news. I can't remember the lyrics either.. something like..

"　「ありがとう、手伝い」と言って..."

But memory fails me after that.. Any help would be appreciated!

よろしくお願いします