Taking My Sister to Become the Immortal King

Being bumped into and reborn into the world of cultivating immortals, with the blessing of the system, it's such an old-fashioned plot. Yifeng sighed, but when he opened his eyes and looked at the ceiling, he felt pressure on his chest. "This, this, this! Why are you here too!" His sister was also reborn after him. Just as he was surprised, a voice came from outside...