(Description Overhaul of March 13, 2025)
In 1937, the Andromedian air armada had produced the Sunbeam(Coming soon), which immediately sparked concern among the San-Chiiki Air Force brass, as Japan itself had its sights focused on China. the D1J, later redesignated K-88J, a sturdy and reliable workhorse being redesigned and modified since 1928, began to show its age as more advanced fighters such as the Proteus Industries Falcon took to the air. Saburo Jouto was tasked with designing an aircraft capable of matching Andromeda's heavy fighter. A firm believer in a balanced aircraft, engineers built a twin engine fighter aircraft resembling a strike aircraft, powered by two 22-Liter Koide-Taeru K-2A engines, the D4J, as known prior to receiving a military designation, originally came in four distinct versions. The K-99J-1S was built as a single seat fighter escort, armed with only a modest pair of heavy machine guns. A similar version, the K-99J-1K, was instead armed with four machine guns and two cannons. The K-99J-1M was fitted with dive brakes, and could carry up to 1000 lbs of bombs, and also carried a gunner operating a light machine gun. The K-99J-1B more functioned as a light bomber, but took the heavier ground attack roles that J-1Ms did not take on. However, the K-99J-2, which took the offensive armament of the J-1K, the J-1S' long range capability, the defensive armament and dive bombing capability of the J-1M, the J-1B's payload capacity. However, the aircraft only had so much power available at higher altitudes. The improved supercharger in the Koide-Taeru K-2G, as well as an APU to replace the handpump-accumulator starter, much to the relief of the gunners on the aircraft. A major problem with the design was the initial expense of the aircraft prior to war. Later in the war production of the aircraft increased, but in the earlier days, pilots for such aircraft were under strict selection, typically either more senior field officers or, slightly later on, fighter pilots that achieved 25 victories in the older K-88J-4, either through luck or skill.

Specifications(Other than specified in the main description)
Crew:2(Pilot, Radio Operator/In Flight Engineer/Gunner)
Max Takeoff Weight:16,881 lbs
Powerplant:2x Koide-Taeru K-2G Engines, 1500 hp each @ 18000 feet
Fuel Capacity:300 Gallons(Internal), 400-600 Gallons(With external fuel tanks)

Performance:
Maximum Speed:464 mph @ ~15000 feet
Service Ceiling:30000 feet
Time to Altitude:15000 feet in 1:38 minutes
Rate of Climb:9,213 ft/min
Actual Power/Weight Ratio:
0.178hp/lb(At max military power, max takeoff weight)
0.296hp/lb(At maximum military power, loaded weight)

Armament:
4x 15mm Machine guns
2x 20mm cannons
Defensive Armament:
2x 15mm machine guns in a turret

Suspended Armament:
up to 6750 lbs of bombs