"A perfect combination of old and new technologies, this aircraft is almost unstoppable."
-Shanghai Alice Aicraft Company-

"Sorry, for destroying your plane Reimu-san, here, I have another one in return."
-Kochiya Sanae-

Hakurei Reimu, Touhou's main protagonist

Backstory:
"In Reimu's second fight with Sanae, Sanae damaged Reimu's plane so badly that both engines were down and none of the control surfaces were working anymore, forcing Reimu to eject from her plane. After Reimu ejected, for some reason, Sanae decided to launch another R-73 missile, completely destroyed Reimu's aircraft, Reimu was shocked by witnessing her plane burst into flame in front of her. She went into depression for quite a while. On one day, Yukari called Reimu to Shanghai Alice Aircraft Company's factory, she refused at first because when she asked, Yukari didn't tell Reimu why, but after a bit, curiousity took over and she decided to go. Upon arriving, she heard a jet sound around the area, but she couldn't identify where it was. After entering the factory, Yukari took Reimu to the designing room, where she saw 4 blueprints of 4 different aircrafts: MiG-21, MiG 1.44, SU-57 and J-20. After viewing the blueprints, Reimu still wasn't understand anything so Yukari finally took the her to the airport at the back of the factory. When she enter the airport, that jet sound became louder and louder, at one point she could identify where it came from, she looked to her left and there it it, an aircraft that looked like a MiG-21 with heavy modifications flew by, during the airshow, the aircraft also perform a few supermaneuvers like cobra and backflip. After the flight, the aircraft landed, taxied to Reimu and stopped. The pilot climbed out and... the pilot was Sanae. Sanae apologized Reimu for destroying her plane and handed the ownership of the aircraft to Reimu. Sanae was the one that went to the outside world, borrowed the blueprints and bring them back to Gensokyo to make Reimu's new plane, since her goddesses used to work at Sukhoi and MiG, she had no problem borrowing the blueprints at all."

The 061-HR stage 3 is a 4.5th gen fighter built based on the frame of a MiG-21. It also has thrust vectoring paddles allowing it to perform supermaneuvers, however it's only 2D so the maneuvers it can perform is quite limited. This aircraft belongs to Hakurei Reimu, it's the 1st aircraft in the Subterranean Animism pack.

Character's wiki

Aircraft's information:
.Manufacturer: Shanghai Alice Aircraft Company
.Role(s): Fighter, interceptor
.Top speed: 2560km/h at 4000m (full payload)
.Weapon(s):
-2x Energy gun
-4x R-73 Archer:
+Min range: 1km
+Max range: 30km
+Required lock-on

-4x R-77M Adder:
+Min range: 5km
+Max range: 193km
+Active radar homing

.Special feature(s):
-Thrust vectoring paddles
-Internal weapons bay
-Afterburner at full throttle
-Supersonic mode above 990km/h

Gallery:

r.i.p

That's everything about her, have a nice flight!