I recommend a manga novel that tells the story of the protagonist traveling to a distant time and space. He traveled with the heroine, and in the original world, he was the heroine's teacher.

It was a manga novel. The main character traveled to a distant time and space, where he traveled with the female lead. In the original world, he was the female lead's teacher. After passing it over, he was together with the Eight Leaves. Finally, he traveled to the novel when the Eight Leaves were young.

Answer 1

" I'm a Teacher at the Special Abilities Academy." This book is written by the author, Fei Ye Zhuquan. It's a novel about the game and the game world. The general plot of this novel is as follows:

Spirit qi was reviving, desolate beasts were rampaging, and the human race was on the verge of collapse. The game characters invaded the real world, but he did not want to conquer the world. He was just a teacher. Ordinary human girls, fallen geniuses who broke off their engagement, crippled young men who were plagued by injuries, stunning non-human women…Under his hands, ordinary people or stunning disciples would all become the peak experts of the world. What? Someone touched my student! This was the story of a grumpy teacher saving the world.
----------------------------
" Back to the Book as a Witch " was a fantasy romance novel written by Liu Yin. The general plot of this novel was:

Ye Haitang was a wisp of soul that had entered space and time by mistake. She became the Azure Dragon Witch that was the most disliked by the author's mother in the Book of the Four Gods. The halo of the female protagonist saved the beautiful evil general, the bloodthirsty and cruel werewolf, the beautiful woman who coexisted with sexiness and murder, the masked man with twisted psychology, the mysterious man who was immortal and never old, and the twins with different personalities.
Why did she always encounter soft and cute little boys and innocent little lolis? Was it because she entered the book at the wrong time and opened it in the wrong way? In order to prevent her originally weak self from dissipating in the space and time of the other world, Ye Haitang had to travel through seven different parallel spaces to complete her so-called witch mission.
----------------------------
" Senior Sister, Please Have Respect " was a fantasy novel written by Not a Small Shrimp. The general plot of this novel was:

Ye Feixuan transmigrated to another world. Before he could develop his worldview, he was captured by the fairy of the Ethereal Immortal Track. A cold senior sister, a legal loli junior sister, a mature elder sister with charm skills... He thought that his happy life was about to begin, but in the end, all of them had anti-armor. Facing the girls who were approaching him step by step, he raised his hand and said,"Girl, please have some self-respect."
----------------------------
" The Story of the Boss Courting His Wife " was a sci-fi novel written by the author, Fosse. The general plot of the novel was:

In order to maintain the balance of the world, the Space and Time Bureau abducted a male and female protagonist from an ancient world.
Ye Lin was originally a genius forensic doctor from the 21st century, but she accidentally transmigrated back to ancient times and fell in love with the Great Zhou Imperial King. There were many twists and turns in her life. Although they eventually stayed together for the rest of their lives, there were still regrets in the end. She was most afraid of the illusory afterlife.
Huangfu Lingkai: He looks like a god, and his methods are like demons. He treats all living beings as nothing. His encounter with Ye Lin was not good at first, but no matter how powerful a person is, he could not control his heart. In the end, he could not escape the fate of being tamed.
At the end of his life, he was tricked by the Time and Space Bureau to be a "repairman", and he was always given "bad reviews". It was really frustrating.
Number 49,"Master, the male lead is causing trouble the moment he appears. How can those people not flip the table?"
Ye Lin,"It's my fault!"
----------------------------
" The 80-Beauty Sweet Marriage of Time Travel " was a modern romance novel written by the author, Moon Shadow Star Tree. The general plot of this novel was:

Ye Qing, a 21st century anti-marriage person, did not expect to wake up as a married military wife in the early 1980s.
That was not all. She had even dressed up in a novel that she had read before. She was a completely soft bun. She only wanted to laugh!
The evil granny, the white lotus flower, and the other top-grade items were all a piece of cake!
And her husband, who was a soldier, wanted to divorce her!
A certain man was dumbfounded.[Wife, what did I miss? I'll change!]
----------------------------
" The Beginning of My First Knowledge, the End of My Life " was an ancient romance novel written by the author, Mo Rui. The general plot of this novel was:

She met him when she was eight years old and he became her master. At the age of sixteen, he was reborn from the ashes and began a new journey with her. They finally fell in love, but she had no choice but to marry someone else. He had already become the leader of the evil sect. The memories of the three lifetimes went from the modern era to the ancient era. The Underworld that almost imprisoned her was actually the place where she and he were born and raised. In order to escape the ending of eternal forgetting, he would rather choose the world of tribulations. How many near-death experiences and how many nirvanas were needed for a lifetime of happiness? The plot is fictional and must not be imitated.
----------------------------
" The Story of Immortal Cultivation Through Time and Space " was a novel written by the author, Ye Chenxiang. The general plot of this novel was:

She had traveled through time and space, and in this era where humans, demons, demons, and ghosts coexisted, she had embarked on a long path of immortality.
He was handsome and handsome, and his white clothes fluttered in the wind. He had met her at the best of times.
" Miss, can you tell me your name?" he asked softly.
"My name is Lu Daye!" she said casually.
The peach blossoms bloomed one after another along the way, the amorous feelings along the way were extremely charming, and they accompanied and supported each other along the way. In the end, it was actually an illusion?
He was devilish, enchanting, and eccentric, but he could do nothing to her.
"Who are you?" he asked through gritted teeth.
"My name is Ma Bianzi!" She ran away after saying that.
The blood flowed like water, and the bones were as dense as mountains. He had helped her overcome the tribulation and ascend to immortality, but in the end, he had ulterior motives? 。
----------------------------
This Master Is Hard to Coax was a fantasy romance novel written by the author, Qi Chui. The general plot of this novel was:

"What? You want to dual cultivate with my master? First, fill in the form and hand in a divine artifact. Then, come to my place to get a number and line up."
"Who am I? Before you catch up to my master, I'm your little ancestor. You have to coax me."
Ye Qingchu relied on her young age to eat and drink in the arms of her love rival, forcefully living as a group pet.
And then…
"Master, I heard that dual cultivation can make one grow taller. Why don't we give it a try?"
"Sure." The corners of the man's lips curled up. He was very satisfied with his little disciple throwing herself into his arms.
"Didn't anyone tell you that once I'm raised, I'm going to marry you?"
"No! Which heartless person set this rule?"
"This venerable self decided."
[Cultivate properly. Don't jump levels. Take your time.]
----------------------------
" Quickly Wear It: The Host Is Sassy and Cute " was an ancient romance novel written by the author, Banxia Dongsheng. The general plot of this novel was:

Ye Yinan bound herself to the system and traveled through three thousand small worlds to chase after him to collect souls! The System replied,[According to the records, he is destined to live a lonely life. You have to change the fact that he has no one to love him and will be miserable forever. Only then can you collect his soul fragments.] Ye Yinan: Matchmaker? [Different worlds, the male protagonist's soul is the same, 1v1]
----------------------------
'The Villain Wants to Deceive His Master and Destroy His Ancestors Everyday' was a novel by the author, Feng Ruoxun, about the adventures of immortals and heroes. The general plot of this novel was:

[The female protagonist who destroyed the salted fish master vs the sickly and crazy villain male protagonist]
"Master, you said that you would stay by my side for the rest of your life and never leave. Are you going back on your word now?" Chu Yanzhi stepped on the corpses and approached Ye Zijin step by step. The smile on his face was still harmless.
......
Ye Zijin was bound to a system, and her mission was to save the main characters and destroy the villains.
Ye Zijin: " Saving the world consumes too many calories. Isn't it nice to lie flat and rot?"
Hence, after transmigrating, Ye Zijin's daily routine was to eat, sleep, eat, sleep…
One day, Ye Zijin picked up a disciple and brought her home, so she had another activity in her daily life-raising a disciple.
Her obedient disciple was not only good at cooking, but he was also good at subduing demons.
Her life was complete, but she did not expect a bucket of cold water to be poured on her head.
What？
Her good disciple was the reincarnation of an ancient demonic god?
Ye Zijin consoled herself." There's no rush. My dear disciple's worldview is crooked. I'll just straighten it out."
However, the female protagonist gradually realized that not only was her disciple's three views not corrected, but they were also becoming more and more crooked.
Not only was his disciple's temper growing, but even the way he looked at her was getting stranger and stranger!
"System, if I pack up and run now, will it be too late?" Ye Zijin trembled.
The system was also trembling.
Ye Zijin was speechless.