I have recently bought another old japanese paybook.
It belonged to Katsumori Kato.
He was born in Hokkaido on November 12, 1918.

At first, I thought he was an infantry man, but then I noticed that the kanji is a little bit different, so I am not sure about that.

I think he was promoted to 陸軍兵長 when he finished his 2 year service.

The pay book comes with an old pic inside. I think it does not match with the pay book, because the place is in the Philippines, and the service of this guy finished in 1941.

Here what I have discovered. Maybe someone could add new information.
Thanks in advance.