SOS Brigade Neko Day!

Notes:

The dry erase board translates to: SOS Brigade Idol Project!!

I can't seem to find the original source, all I know for certain is that the artist's name is maruki nobuaki (also goes by the name 丸木宣明 ) and that the original image is either from Newtype or Megami (some form of manga magazines similar to Shonen Jump) but I can't find the original. I'm sorry but I tried my best. T~T