Ultraman: It turns out this is the easy mode.

"A fine knife, a fine knife."

A few days later, exclamations of admiration echoed throughout the base's research and development laboratory. Through the tireless research of Horii, Professor EDF, and a group of research fanatics, they not only mastered the weapon technology left behind by the multifaceted aliens but also achieved a breakthrough by combining it with existing Earth technology, resulting in a comprehensive upgrade of Earth's armed forces. Among these advancements, the most eye-catching was the samurai sword custom-designed for Saeko Busujima.

Saeko Busujima stood on the training field, her hands gripping her upgraded katana, the blade gleaming a cold, silvery light in the sunlight. She gently swung the blade, feeling the stable grip of the hilt, a satisfied smile playing on her lips—the sword's modifications had far exceeded her expectations.

According to the R&D team's design, this knife can achieve an "elongation" effect by instantly changing the arrangement of nanoparticles: when attacking distant targets, the blade can extend to three times its original length within 0.1 seconds; after extension, the blade can be restored to its original strength and toughness in certain areas by readjusting the nanoparticle arrangement, preventing the blade from becoming fragile due to increased length. Even more ingeniously, a small transmission module is integrated inside the blade, capable of rapidly transporting replicated blade material to the extended portion, ensuring a seamless extension process without any jamming or power interruption.

In addition to the "high-frequency oscillation" technology that Cui Ming had previously customized for her, the power of this katana has now doubled—it can not only easily cut through any conventional metal, but also tear open the hard skin of monsters with its high-frequency oscillation and nanoscale blade structure.

“I like it very much, Choi.” Saeko Busujima turned around, brandished her sword at Choi, who was not far away, her eyes full of joy, like a child who had received a favorite toy.

"I'm glad you like it." Cui Ming's tense lips softened as he looked at her happy expression, revealing a rare smile. He knew that this knife was not only a weapon, but also an extension of Saeko Busujima's fighting spirit. Making her satisfied was more important than any weapon specifications.

Of course, this warm atmosphere only existed between Choi Myung and Saeko Busujima—if one could ignore the "bloodshed" surrounding the training ground.

This isn't actually a real battle; it's just a routine simulation exercise for the Victory Team. To familiarize the team members with the combat effects of the new weapon, the development team specially created models that simulate human bodies and monster skin, and even installed "blood-spraying devices" inside the models, striving to recreate the most realistic battle scene.

Meanwhile, the models on the training field had already been "disassembled" into pieces by Saeko Busujima: the "limbs" of the simulated human models were scattered on the ground, and "blood" flowed along the cracks in the ground, forming dark red marks; the thick alloy plate simulating the skin of monsters was covered with knife marks of varying depths, one of which had a smooth edge and was obviously cut off by her new knife.

The rest of the Victory Team—Daigo, Rena, Shinjo, Horii, and Nozue—stood at the edge of the training field, their faces pale as they watched this scene unfold. They involuntarily shrank back, their eyes filled with fear.

"That was terrifying!" Horii swallowed hard, his voice trembling. "That knife was outrageous! It cut through the alloy plate like it was tofu."

"Saeko's movements are too fast. I didn't even see how she drew her sword." Nori adjusted his glasses, his eyes filled with disbelief. He only knew that Saeko Busujima was skilled in swordsmanship, but he never expected that her combat power would be so terrifying after upgrading her weapon.

Shinjo covered his face and muttered, "I shouldn't have come to watch. This scene is even scarier than the last time I saw a monster. Saeko Busujima is too ruthless!"

Even the usually composed Daigo and Rena couldn't help but frown—not out of fear of Saeko Busujima, but because they were shocked by the "bloody" simulation and the power of the new weapon. They knew very well how effective this knife would be in actual combat, but at the same time, they were secretly relieved: thankfully, Saeko Busujima was their teammate; if she were an enemy, probably no one could withstand her blade. Saeko Busujima, however, seemed oblivious to her teammates' reactions, continuing to focus intently on wielding the new knife, repeatedly testing its extension, vibration, and cutting effects. Each swing was precise and swift, the "whoosh" of the blade cutting through the air exceptionally clear on the training ground, making the members of the GUTS team increasingly uneasy.

Looking at his team members' reactions, Cui Ming shook his head helplessly—he should have known better than to let them observe so closely. Now, for the next few days, the team members would probably instinctively avoid Saeko Busujima. But this was for the best; at least it would give them a clearer understanding of the new weapon's power, allowing them to coordinate better in future combat.

After this incident, Saeko Busujima became someone the male members of the GUTS team "didn't want to approach easily"—not because they disliked her, but simply because they found her "too scary" and were always a little intimidated.

Normally at the base, Saeko Busujima is the epitome of a Yamato Nadeshiko: she speaks gently, proactively helps her teammates organize their training equipment, occasionally shares homemade snacks, and carefully treats wounds when teammates are injured—every gesture exudes elegance and tenderness. But once she picks up a sword and enters combat mode, she transforms completely—her eyes instantly sharpen like blades, her movements become swift and decisive, and even when facing a simulation model, she carries a ruthless determination to "not rest until the target is shattered," a murderous aura more terrifying than any demon.

Even the usually composed Daigo would subconsciously keep a half-meter distance from Saeko Busujima during training sessions, afraid of accidentally disturbing her "battle mode." When the guys got together in private, they couldn't help but exclaim, "Saeko's personality is so different! She's usually as gentle as the girl next door, but when she's in battle, it's like she's a completely different person—it's terrifying!"

"That's right. Last time I accidentally blocked her during training, and the look she gave me made my legs go weak. I thought she was going to chop me in half with a knife!" Xincheng patted his chest with lingering fear, his tone full of lingering dread.

Horii nodded in agreement: "The key is that she herself doesn't realize it. Every time after a battle, she calmly says, 'The practice just now went very smoothly,' completely unaware that we were almost scared to death."

Towards the end of their conversation, the men all turned to look at Saeko Busujima, who was talking to Choi Myung not far away. Saeko was holding a new sword, whispering something to Choi Myung, her eyes filled with dependence—a stark contrast to her fierce demeanor in battle. Choi Myung listened patiently, occasionally nodding in response, and even reaching out to brush dust from her scabbard. Throughout, he remained calm and showed no sign of fear.

"Seriously, the instructor is a real man!" Shinjo couldn't help but exclaim. "Only an instructor like him can keep Saeko in check. If it were any of us, who would dare to get that close to her!"

"That's right, not only is the instructor not afraid, but he also gets along so well with Saeko. I'm truly impressed by his mental fortitude." Horii echoed with deep agreement. "And look, no matter how scary Saeko is in battle, she's just like any other girl in front of the instructor. That's probably what they mean by 'one thing subdues another'!"

Daigo smiled and nodded, secretly agreeing in his heart—Choi Myeong could not only lead everyone to charge into battle, but also tolerate Saeko Busujima's "contrast." This composure and sense of responsibility truly deserved the title of "real man."

Choi Myung, who was being whispered about by his teammates, seemed to notice their gazes and turned to look at them. The men quickly lowered their heads, pretending to chat about other things, afraid of being discovered gossiping behind their backs—after all, if the instructors found out they were afraid of Saeko Busujima, they might be subjected to some kind of "courage training." (End of Chapter)