My Little Junior Brother Is the One Chosen by Heaven

Traveling through the world of immortals and demons, a catastrophe is coming and the world is in turmoil, but Ning Yuan does not panic at all. Want to ask why? Because his master is the master of the forbidden area, his cultivation is unparalleled, and he looks down on all directions, so he is nicknamed the strongest in the world. Because his senior sisters are beautiful and beautiful, each has his or her own merits, and they also care a lot for their younger junior brother. Ning Yuan: "I just want to practice together with my senior sisters every day without shame, without caring about worldly affairs, without getting involved in cause and effect, and to live forever as soon as possible." System: "No, you don't want to." Ning Yuan (must). "You're right."