Senkou no Night Raid - 01
"The story is set in Shanghai in 1931, when the Imperial Japanese Army has been dispatched to mainland China due to the relatively recent First Sino-Japanese War, Russo-Japanese War, and World War I. In this cosmopolitan city of intrigue, there is a special military spy organization called "Sakurai Kikan" that has since been buried in history."

Thriller with super spies.

The Chinese used by one guy was so bad even I could tell it was fake. But apparently no one noticed. And nobody bothered to ask them why they were in the secret base?
Ok, the animation was nice, but the screenwriting could have been better. Unless this is a kids' show? I don't recall seeing blood, so maybe it is.