My sister is Luna

"You can have many moves, and they can be very cool, but they must be useful and cause damage to the enemy. They shouldn't be meaningless moves just for the sake of looking cool. Adding unnecessary and useless moves will only expose your weaknesses more likely. Combat moves emphasize a kind of concise beauty. Every move you make must be clean and neat, hitting the enemy directly without the slightest hesitation. You must concentrate your mind. A scattered mind means death. This is not a joke."

Cain drew these words from his past battles.

"In short, in my personal opinion, a move that has no effect cannot be called a move; it should be called a trick. Of course, sometimes tricks can catch people off guard. It all depends on your personal combat awareness. If used well, it is called the finishing touch, a last-ditch effort to turn the tide. If used poorly, it is just flashy and useless."

"Combat awareness is also very important. The fastest way is to develop it in real life-or-death combat and figure it out on your own, but it is very dangerous. The gentler way is to keep practicing, but it will consume a lot of time."

"However, my words can only serve as a reference. You need to find your own fighting style. For example, I prefer a simple and brutal approach. But everyone's physique is different. No one has the explosive power to end a battle in an instant, but you need to be able to fight continuously. You need to wear down your enemy. At this time, endurance, awareness, and willpower are the key to victory or defeat. So what suits you best is the best. I can only give you a concept. To make it a reality is up to you." Cain said calmly to the students surrounding him.

For the first time, he realized that being a teacher could be such an interesting thing. Seeing his students looking at him with eyes that sparkled with understanding and thirst for knowledge, he felt a great sense of accomplishment.

Cain sighed and said to Yao, who still seemed somewhat confused:

“I say, Yao, your Seven Star Sword Technique doesn’t seem to have that many circles, one circle is enough. Adding more will only make you unstable and lack staying power. I really don’t know why you added so many flashy but impractical moves. In the end, you’ll only be dragging yourself down.”

"Teacher, this is my tactic. It's to confuse the enemy so I can take the opportunity to defeat them!" Yao retorted somewhat unwillingly.

“But you have too many weaknesses. Before the enemy can even see clearly, they can kill you with a single sword strike. Moreover, you haven’t been able to unleash the full power of the Seven Star Sword Technique. You still need to work harder,” Cain said earnestly.

"Yes, I understand, Professor Cain."

This time, Yao surprisingly didn't refute, but instead nodded in agreement. He knew that to master the Seven Star Sword Technique more deeply, he needed the support of stellar power, but he didn't have that power yet, so he really needed to work harder to practice.

"Alright, students, time's up. get out of class dismissed." Cain clapped his hands as he mentally calculated that the time was almost up.

"You can put these things into practice on your own. If you don't understand anything, you can ask me for help. See you tomorrow."

Seeing the students still pondering what he had said, Cain waved and leisurely left the martial arts classroom, leaving without a trace, his name and identity hidden.

……

"I can't find that feeling. Since we're all from the same sect, there's no sense of wanting to fight seriously and fight to the death. The wooden stakes are just standing there, letting people hit them." A girl with short white hair said with a hint of distress.

The girl had short, neat white hair that reached her ears, and a cool, aloof demeanor. She stood straight and wore a special outfit that seemed to be made of countless prisms, which clung to her curvaceous figure. Every move she made was purposeful, without a trace of superfluity or hesitation, like an incredibly precise robot. She looked dashing, cool, and handsome.

The white-haired girl wholeheartedly agreed with Cain's words in class: there's no need for anything superfluous; just move forward with a clear purpose, defeat the enemy, and seize victory, just like her extremely disciplined lifestyle and battles. She knows exactly what to do and when not to do it, with perfect precision and without any mistakes.

Although she received rigorous training from a young age and her combat awareness was much higher than that of her peers, she always felt that something was missing and that she seemed a bit "stiff".

“Fighting only yourself is too one-dimensional and lacks diversity,” the white-haired girl said, looking at another girl who looked exactly like her.

The only difference was that she shimmered with a glass-like halo, like a phantom figure reflected in a mirror.

That was the power she gained in the Hall of Mirrors; the mirrors allowed her to see herself clearly at all times and challenge herself.

"The Dream of Returning to the Void is imminent, and we need to improve our strength as much as possible," the girl said earnestly.

"That naive guy actually wants to win first place, how ridiculous."

"I'll go ask Teacher Cain for advice." After thinking for a moment, the girl decided to take long, powerful steps and leave the martial arts classroom, which only had a few people.

Cain lived in a house similar to a courtyard house, with four rooms for four people, but only three of them lived there, and one room was empty. The four rooms were arranged in a square around a small courtyard in the middle.

As soon as the white-haired girl reached the entrance to her destination, she heard a melodious and graceful piano tune.

“?~?~?~?~?~?~”

Even a resolute young woman with white hair couldn't help but listen to the beautiful piano music, feeling deeply captivated and moved.

She seemed to see the happy times when her parents were still alive in her childhood. Her parents smiled gently and stroked her head. Their loving gaze warmed her. Her lively younger brother leaned affectionately against their mother and held her hand. It was a harmonious and happy family scene.

Even though she rarely smiled, she couldn't help but smile.

In the courtyard.

Kain sat in his chair, eyes closed, listening intently, immersed in the happiness depicted by the music. He occasionally sipped a sip of hot tea, thoroughly enjoying himself. Yang Yuhuan's musical skills seemed to have improved again. Without the influence of her spiritual loss, the meaning contained in her music was clearer and brighter. Although it had lost the hazy beauty of the past, it was real. She truly felt happiness, not a false emptiness, something she had fabricated or imagined out of thin air.

Although Milady had a stern face, her gentle eyes revealed that she was enjoying the beautiful music, but was unwilling to admit it to her rival.

Xi Shi, who had come to visit, was also completely captivated. She sat in a chair, drifting off into a daze, lost in her own happiness.

Yang Yuhuan, her face half-hidden behind her pipa, stole a glance with her bright eyes at Cain, who was completely absorbed in the music. A slight smile played on her lips beneath the pipa, and the music produced by her plucking the strings seemed even more soothing and pleasant.

……