Furthermore , former Dai - ichi employees and Mitsui employees did n't get along well together because of the difference of the two banks ' corporate culture .
Teikoku Bank , however , could n't expand its business freely owing to Japan being at World War II .
Former Dai - ichi employees and Mitsui employees did n't get along well together because of the difference of the two banks ' corporate culture .
Teikoku Bank , however , could n't expand its business freely owing to Japan being at World War II .