A Bystander Protagonist's Cultivation Notes

Hao Ren began cultivating immortality. He had expected a hellish life of endless hardship and pain, but instead, what lay before him was a dreamlike paradise. His master was the greatest Martial Saint under heaven, and he had a System. His senior sister was a gentle, big-sister type, reborn from the future. His second senior sister was a quirky woman who had transmigrated from Earth. His junior sister was the chosen child of a plane, carrying its will. Faced with them, Hao Ren couldn’t help feeling that he was the real background character.