The Desolate Era (Web Novel) - Book 4, Chapter 6 - Ji Ning Entering Lake, Battling Serpentwing

Chen Xun crossed into the vast world of cultivation, awakened the Immortal System, and even received an Immortal beast as a companion.Chen Xun walked out of the ordinary small mountain village, stepping into the world of cultivation.Experiencing the prosperous era of cultivation world, the golden age, the era of rule collapse, the dark great turmoil era, and the era when all spirits were silent...Chen Xun, have no interest in fighting or killing, nor do I want to provoke anyone. I just want to travel the world with Bull and see all the splendor of the world.

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

Kanda Kyoichi transmigrated to Konoha and became a temporary instructor at the Ninja Academy. Fortunately, he awakened the Mentor System.By teaching others, he could earn rewards.Thus began Kyoichi’s career as a “teacher” in the ninja world.Shisui: “Sensei’s unique interpretation of the Will of Fire has given the Uchiha Clan a true sense of direction!”Asuma: “The essence of the jade lies in protecting the people, with the advanced leading the way for the less experienced. Only then can Konoha become stronger!”Kakashi: “He’s my life mentor. He transformed Konoha!”...Years later, in the memoirs of Kyoichi, now the Hokage, he wrote:“I honestly just wanted to be a life mentor!”

Great Cultivator Chen Fan had failed his Tribulation period, but after a dream, he had returned to Earth, when he was young, five hundred years ago.

“In my past life, I reached the peak in the universe. I looked down upon the myriad of worlds, but with no one accompanying me. In this life, I wish for both.”

- Description from novelupdates