After Retirement, I Became a National Treasure Mecha Instructor

[All mechs, follow my lead!]: Three minutes after retiring, martial arts instructor Sheng Yi transmigrated into the interstellar era and became a proud mech assistant instructor. The towering, icy machines moved like the wind. But to Sheng Yi, no matter how fast a mech was, it was still nothing but a hunk of junk that violated the laws of human movement, stiff and awkward, riddled with mistakes. Instructor Sheng, strict about her students' form, frowned. "Who taught you to pilot a mech like this?" Fix it. All of you! ** When Gu Jue was injured, nearly everyone thought the rise of Deep Blue Military Academy was hopeless. The instructor had left, the equipment was outdated, and even several promising cadets had made mistakes in the league. Gu Jue, a genius, had suffered mental power damage and might never be able to pilot a mech again. How could they possibly compete? No one could have imagined that, while the other three military academies were quietly competing against one another, news began to spread that Deep Blue's school, system, and interstellar records had been broken one after another. Every record-breaker was grateful to an instructor named Sheng Yi. Under her guidance, ordinary cadets with average talent qualified for the league. Geniuses who couldn't make use of their talent became record holders overnight. Even the injured Gu Jue got back into the cockpit and reclaimed the league championship that belonged to him! Before she came to the public's attention, she had been nothing more than an assistant mech instructor without an official title at Deep Blue Military Academy. The other academies: ...Damn it, where did Deep Blue dig up a mech instructor like that? We want one too! It wasn't until the military noticed how formidable Sheng Yi was and invited her to shine at the command center that Sheng Yi, who had only wanted to correct people's posture, remembered that she had been planning to retire before she transmigrated. Well, what else could she do? She'd keep training the military's top fighters! An unconventional mech competition power fantasy, with a mountain of original worldbuilding. The heroine retired at a very young age, so she's not actually that old (though she does have a bit of a retired-person attitude). "National treasure" in the title is descriptive. The story is set in an imaginary future, with no real-world countries. The male lead is Gu Jue, and he will probably remain in the background. Mainly about mech competitions, includes forum posts, happy ending. ---Coming Soon: After Retiring from Figure Skating, I Became the Strongest Soldier--- Figure skater Sheng Hu transmigrated to the interstellar era and discovered that while mechs here were huge, their pilots seemed to have no coordination. They spent all day trying to keep their mechs steady and couldn't even fly. Sheng Hu: "Wait, have none of you ever trained on a balance beam?" The other military academies looked down on them too, playing their school anthems to get under their skin. Sheng Hu got an itch to skate and performed a triple Axel. Her instructor was astounded and made an unprecedented promise: as long as Sheng Hu kept piloting mechs, he would agree to any conditions. Sheng Hu thought about it. "Could you build an ice rink for my mech?" ** After many years, First Military Academy reclaimed its spot in the league. Everyone was on high alert. But because they weren't familiar with the competition rules, when the event began they ran around in a panic, sweating bullets. The media called them kids who had just made it into an elite class, clumsy but cute. Sheng Hu didn't think she was cute, but she still wanted to ask, "Are we allowed to play music during the competition?" An impatient staff member said, "If it's not forbidden, it's allowed." He was thinking that their embarrassing behavior had already made the headlines, so why were the people from First Military Academy still so petty? Sheng Hu breathed a sigh of relief. "Good." She was afraid she wouldn't be able to compete without music. The staff member rolled his eyes. The weaker they are, the more drama they make. But on the day of the individual combat competition, Sheng Hu climbed into her mech, turned on an antique music player, stretched her limbs, then sprang into the air and performed a quadruple Axel. The other combatants, who were still in the era of booster-propelled flight: What the hell? What just flew past us? When the competition officially started, they were even more dumbfounded. Damn, how can she switch legs and shoot at the same time? How can a heavy mech pull off moves that flexible?! Hey, can someone tell me why her moves look so beautiful even when she's killing her opponent? Wait, damn, why is she spinning?! And she's spinning faster and faster!!! The cadets, who could hurt their backs just doing a side flip, let alone spinning, were thrown into chaos and fled in every direction. But the longer Sheng Hu competed, the better she got. When the competition ended, she was the only one still standing. The cadets spat blood. "Weren't you supposed to be from a weak academy?" Sheng Hu lowered her leg and said sincerely, "Sorry, it's a professional habit." Whenever she skates to "Autumn Leaves," she wants to do a Biellmann spin. She can't help it. First Military Academy was grief-stricken. "We told you not to let her hear the background music!" Former figure skater, current mech combatant Sheng Hu: No one can beat me to my own background music. An unconventional mech competition power fantasy, with a mountain of original worldbuilding. The heroine was a figure skater in her previous life, but the story is mainly about her piloting mechs. A star cadet suddenly appears at an underdog military academy and raises the ceiling for individual combat. Theme: Faster, higher, stronger.