We Are Already in the Interstellar Era, Do I Still Need to Cultivate to Immortality?

China's last inheritance of immortality was inherited by Chen Shen, but when Chen Shen returned from his studies, the whole world had changed drastically. Technology has extended human lifespan. In an era when everyone can live to be two or three hundred years old, technology explodes and the population explodes. Humanity invented steel mechas, interstellar battleships, and genetic warriors. A brilliant interstellar era appeared in front of Chen Shen. This made Chen Shen very confused. Am I still cultivating immortality? In confusion, Chen Shen obtained the evangelism system. By evangelizing and receiving karma, he can get rewards. Therefore, Chen Shen began to publicize and carry forward the path of cultivating immortals... (The introduction is too weak, please move to the text)