A supervisor from Sakurai Kitan and formerly an Imperial Japanese Army lieutenant colonel. He is one who usually give mission briefings to the group. He is a mild-mannered gentleman and speaks in a polite tone. (Wikipedia)  

The year is 1931. The city is Shanghai. Ten years before America will enter World War II, the hydra's teeth planted by the first great global conflict are beginning to germinate. Hatching like spiders, they weave the complex web of plots and conspiracies destined to inevitably draw entire nations to the brink of destruction. Caught in the heart of these webs, desperately seeking to separate lies from truth, is "Sakurai Kikan," an ultra-secret intelligence agency staffed by extraordinarily talented individuals with abilities far beyond those of normal humans. Their duty: to stop the darkest plots and eliminate the greatest threats. But in a city built on intrigue, can even a team of clairvoyants, telepaths and espers stand against the ultimate forces of destiny?<br><br>
(Source: Sentai Filmworks)

Three un-aired episodes included on the BD/DVD volumes.

Shinichirou Sakurai