This shows the older Suzumiya and Storm Vanguard of the Valkryies, their backstory, how they grew up, and what ultimately became of them and their friends.
Those unfamiliar with the individuals in question, won’t know what happened from the video. But I do, and it’s very touching.
As you can see in the photo, these are 4 students at an academy. The girl with the flowery blond hair is Haruka Suzumiya, HQ coordinator (3rd in command of the Valkyries). The one with the purple silk hair is Storm Vanguard 1 (Mitsuki Hayase: 2nd in command). These two are class mates on the same level and thus graduated at the same time. Their male friends, however, graduated one year sooner being in a higher level, and were commissioned as officers in the war against the BETA. Suzumiya and Hayase are very competitive, but also close and dear friends. To the point where they shared the same taste in men and fell in love with the same person. Who then got commissioned ahead of them in the que. Being commissioned themselves and meeting him afterwards, was their motivation. To finally settle the matter between the 3 of them.
Takayuki Narumi and his male classmate friend fought in the Hesperus Operation to retake the mainland of Japan, Yokohama, from the BETA hive that had spawned there. During it, a new weapon was decided to be used, one developed by the Americans called the G-Bomb, and evacuation orders were sent out to all ground forces to leave the battlefield. Narumi disobeyed that order and continued to fight, because the anti-air defenses were taking out the forces deploying the weapon. As you can see in the vid, he charged past a lot of enemies and successfully eliminated enough of the anti-air defenses that two G-Bombs were deployed successfully, leading to the Hesperus Operation’s victory and the retaking of the mainland, culminating in a full seizure of the Yokohama hive. He, of course, did not survive the gravitational explosion.
I greatly respect both Haruka Suzumiya and Mitsuki Hayase, since they were the superior officers of the protagonist in Muv Luv Alternative. They provided a lot of morale and emotional support, as well as discipline and tradition. That’s a lot of things weighing in on people, but they showed how to pull it together and keep on fighting.