The Ki-45 was to be replaced by the Ki-102. The designer of the Ki-102 was Takeo Doi. To save time it was decided to use the Ki-96 as a bases for the Ki-102.
Tail wheel was retractable.
Each crew member was in their own enclosed cockpits.
High Altitude Modifications
Six of the pre-production aircraft were modified to be high altitude fighters. The crew area was modified and Mitsubishi Ha-112-IIru engines were installed. Only 15 were eventually delivered because of difficulties with the turbo chargers.