Called from Another World, but I Am the Immortal Emperor

[Eastern Fantasy + Return of the Immortal Emperor + Multiple Time Travels + System + Immortal Cultivation + No Female Protagonist] Han Ling was riding on a mountain road on a holiday night when a 100-ton truck suddenly rushed towards him. Han Ling immediately jumped to the right, but unexpectedly entered a tunnel and passed out. When he woke up again, he found that he had traveled to the world of immortality... Han Ling abides by the three principles in the world of immortality: teammates are my shield, run away if you can't beat him, and live as hard as you can. Coupled with his unparalleled qualifications and amazing understanding, he finally became the Immortal Emperor. Unexpectedly, he accidentally obtained the saint seed but was surrounded by many immortal emperors. In the end, because he cast the spell too hard, he went back to the hour before he traveled to the world of immortality. After the vacation, he returned to school, and something happened again. This time, he was directly summoned to the magical world along with the entire class. Here, he saw various strange buildings and learned about a new power - magic. Magic power can also be transformed into pure yin and yang spiritual power through the modulation of yin and yang. In addition, he also discovered a "storage bag" with intelligence, which seemed to be called a "system" by his original owner. There are many treasures in this "system", and the magic materials in it can be converted into a large amount of spiritual power for your own cultivation. But as Han Ling continued to investigate, he discovered that this "system" had another secret... As a result, Han Ling began to return to the top in one world after another...