"Who would have thought that after graduating from a teacher's college, I wouldn’t become a teacher, but instead end up as a teacher in another world?" After sorting through his memories, Li Mu Yue felt a bit helpless as he silently complained in his heart. He truly believed he had a deep, fateful connection with the word "teacher."

In high school, he was one of the better students in the arts class, so many classmates would come to him for help with questions, earning him the nickname "Teacher Yue." Then, when applying for university, he unexpectedly slid into a teacher training college, and on his family's advice, chose a strong teacher education major. In college, he tutored his roommate and again earned the nickname "Teacher Yue."

To everyone's surprise, when he graduated, Li Mu Yue rebelled and chose to become a civil servant instead of a teacher. What he never expected was that on his first day at work, the moment he walked into the office, he would suddenly be transported to another world, becoming a new teacher stepping into the office of a ninja school.

His current body is named Yu Sheng Mu Yue; his first name remains Mu Yue, but his surname has changed. "Sigh, this is not a safe world. There are too many psychopaths and paranoid perverts, and they are quite formidable," Mu Yue sighed inwardly.

He casually observed the office, which was not much different from the school office in his previous life, but the sharp shuriken carelessly placed on the desk reminded him that this was no longer the peaceful land he once knew. What made Mu Yue feel even more frustrated was that he wasn't just a teacher; he was also a Root ninja!

His original self was an orphan nurtured by Root from a young age. The reason he became a teacher at the ninja school was due to Danzo's order to observe and record the students, paying particular attention to any potential geniuses. "Being under the Hokage isn't a good place..."

Just as Mu Yue was contemplating how to survive in this dangerous world, a cold mechanical voice suddenly echoed in his mind, and a transparent blue panel appeared before him.

【Teacher system activated. Congratulations, you have successfully become a teacher.】

【Teaching students will earn rewards; the better the student, the greater the rewards.】

【You can take outstanding students to mentor them one-on-one. As the disciple’s strength grows, the teacher will receive rewards.】

【PS: Both parties must agree to the mentorship; one-sided acceptance is not allowed.】

Mu Yue examined the blue panel, which currently displayed only two options: Personal Template and Mentor-Disciple. He clicked on the personal panel.

【Name: Yu Sheng Mu Yue】

【Age: 18】

【Chakra: 4300】

【Skills: Body Flicker Technique, Fire Release: Great Fireball Technique, Fire Release: Phoenix Fire Technique, Konoha Fluid Technique】

【Evaluation: Elite among Chunin, somewhat significant cannon fodder in war.】

After reading the somewhat stinging evaluation, Mu Yue silently closed the personal panel and opened the Mentor-Disciple option, which was blank, likely because he had no disciples yet.

As he waited for the school bell to ring, Mu Yue remembered he had his first class, so he packed his things and headed toward the classroom. Although he was a new teacher, there weren’t many teachers at the ninja school, so Mu Yue also became the homeroom teacher for the freshman class.

Mu Yue looked over the class list and recognized several familiar names. There were Mitarashi Anko and Kanetsu Tetsu, both of whom would become the future gatekeepers of Konoha. When he saw the name Uchiha Shisui, his eyes lit up; this was no ordinary genius. Since the strength of the disciples would benefit the teacher with rewards, the more talented the disciple, the better.

Before entering the classroom, Mu Yue adjusted his expression and walked in with a warm, sunny smile. The classroom of the ninja school was designed somewhat uniquely; perhaps to help the students in the back see clearly, the seating was arranged in increasing height, one row higher than the last.

Mu Yue’s arrival brought silence to the previously noisy classroom. After all, they were all five- and six-year-old kids, experiencing school for the first time. Most of them were both curious and awed by the presence of a ninja teacher. Of course, there were exceptions, like a purple-haired girl with a single ponytail sitting in the front row who boldly said upon Mu Yue’s entrance, "Big brother, you’re so handsome! Are you our teacher?"

Mu Yue smiled and nodded in response, "That’s right, this beautiful little classmate; I am your homeroom teacher from now on."

"Heehee." The purple-haired girl felt that the golden-haired male teacher was a good person upon receiving the compliment. Other students relaxed upon seeing their interaction; even though it was their first day of school, they had heard relatives complain about how strict teachers could be.

Mu Yue quickly walked to the podium and wrote his full name with chalk, then turned around and formally introduced himself: "My name is Yu Sheng Mu Yue, and from today onwards, I will be your teacher. I hope to receive your support in the future."

"Great! Teacher, my name is Mitarashi Anko," the purple-haired girl was the first to respond. With Anko leading, the others followed suit, and Shisui also made his response.

Mu Yue sensed a lack of response from the system and felt a bit disappointed; he had thought he could accept Shisui as a disciple through this interaction, as it could be considered acknowledgment of a teacher, but instead, it resulted in a bug failure.

Mu Yue did not let his inner emotions show on his face. Once everyone had introduced themselves, he raised his hand to signal for quiet. "Before I start the lesson, I have a question for you all. Do you know how Konoha was established?"

The classroom instantly fell silent again, and everyone exchanged glances, unsure of how to respond. Although Shisui, having received some family education, knew a little, he was not one to seek the spotlight and would not answer unless called upon.

"It was built by people," Anko thought for a moment and answered.

"Indeed, it was built by people, but you need to know who exactly built Konoha and why it was established," Mu Yue did not deny Anko's words but continued from there. "Before the era of ninja villages, there was constant warfare during the Warring States period. During that time, even children your age might have to pick up weapons and kill; fierce battles could break out at any moment..."

As he recounted this brutal history, Mu Yue's voice became somber, laying the harsh reality of the Warring States period before the students. Perhaps children in the ninja world mature faster, or maybe because they were in Konoha, many of the kids felt the weight of it all, and the atmosphere of the classroom changed.

"At that time, two clans stepped forward: one was the Senju clan, and the other was the Uchiha clan." Mu Yue's tone shifted slightly from somber to passionate.

"I know, I know! The first Hokage, Hashirama-sama, is from the Senju clan," when Mu Yue mentioned the Senju, the students immediately felt involved; while they might not know about the Warring States period, they were familiar with the Senju.

Shisui felt a small disappointment as he noticed everyone focusing on the Senju, with no one paying attention to the Uchiha, not understanding why, since both were founding ninja clans of Konoha.

"In order to protect their descendants and ensure that children would no longer have to pick up weapons and kill, the two clans worked together to create Konoha, attracting more ninja clans to join, ultimately ending the Warring States period. This is how we have our current Konoha."

"Where the leaves dance, the fire continues to thrive. The flames will continue to illuminate the village and allow new leaves to sprout. It was the selfless dedication and sacrifices of our ancestors that led to our present, to the ninja school we have today. This spirit of selfless dedication is the Will of Fire of Konoha!" As he finished, Mu Yue's expression grew serious, as if he were still reminiscing about the ancestors.

He thought that Shisui would be interested in a teacher who understood history and the Will of Fire.

"So, Konoha came to be like this? I must pay my respects next time I pass by the Hokage Rock."

"I want to become a ninja with the Will of Fire and protect Konoha!"

The students’ imaginations had already conjured images of their ancestors fighting valiantly to establish their land, and they all felt a rush of excitement, expressing their desire to learn from their predecessors. Shisui’s eyes also brightened; he felt that this teacher seemed a bit special and began to take more interest in the upcoming school life.

Originally, he had heard from his elders that what was taught at the ninja school had already been covered in his clan, and he planned to graduate early to help out at the police department, but now it seemed that it might not be entirely the case.

"Now, does anyone know how many types of chakra attributes there are?"

"Five: Water, Earth, Wind, Lightning, and Fire," a student from a ninja family quickly answered.

"Not quite right. There are seven types of chakra attributes. Besides the five basic elemental transformations—Water, Earth, Wind, Lightning, and Fire—there are also two special properties: Yin and Yang," Mu Yue smiled and corrected him.

This questioning followed by correction would leave a deeper impression on the students.

Next, Mu Yue began explaining the basic understanding of chakra, occasionally telling jokes to amuse the children and make them laugh.

Time flew by quickly, and before he knew it, four classes had passed. When the bell rang for class to end, Mu Yue stopped and said with a smile, "School is over! Tomorrow we will learn about refining chakra!"

Mu Yue directly announced the end of the class and mentioned what would be covered in the next lesson.

When the students heard Mu Yue say that school was over, they were momentarily stunned, thinking, "Didn’t we just start class? How is it already over?" Upon careful reflection, it seemed they had already gone through four class sessions.

It was just that with Mu Yue's guidance, they had attended class diligently while also enjoying themselves, so they hadn’t noticed the passage of time.

"I can't wait to refine chakra!" Anko exclaimed, already eager for the next day.

Her family wasn’t composed of ninjas, so she hadn’t been exposed to this type of knowledge beforehand.

"Isn't class really interesting? My cousin even lied to me, saying school was hard to bear. When I get home, I’ll tell my aunt about him stealing money to buy snacks," Kanetsu Tetsu said, looking indignant as if he had almost been fooled.

"Then wouldn't it be better to threaten your cousin to share the snacks with you?" said Kamizuki Izumi, sharing her opinion.

Kanetsu Tetsu instantly had a look of realization, clapping Kamizuki Izumi on the shoulder in admiration, "Bro, that’s a great idea! If it works, I’ll share half of the snacks with you."

Shisui watched as Mu Yue was about to leave the classroom. After thinking for a moment, he stood up and followed him.

【Class completed, calculating results】

【Evaluation: A】

【Utilized stories of ancestors to inspire students' sense of responsibility and enthusiasm; the lecture content was coherent and highly interactive, with high student satisfaction】

【Reward calculation…】