This Body Is Like Salary, I Will Follow You as You Move Forward

The protagonist awakened to the sign-in system in the fantasy world, but one fatal flaw is that the things he signed in have restrictions on their use. When the protagonist saw that 99% of the things he signed in could not be used, he angrily cursed the system. As a result, the system got annoyed and gave him 9 reincarnation scrolls. He saw that some of the high-level immortal cultivation items he signed in could not be used by himself. Who is this kind of pain? I understand, later he met a girl, took her in as his sister, and gave him all the items to practice. But suddenly one day, foreign enemies surrounded him, and the protagonist silently blocked everything for his sister. The sister was in pain, but the protagonist appeared next to his sister in a new identity after reincarnation. From then on, there was someone behind A Zhu who silently protected her.