Live for a Hundred Thousand Years and Return as a Young Man

[No system + single female protagonist + longevity + non-brainless fun + plot direction] One hundred thousand years ago, Xu Qingyang, a Mahayana monk, accidentally took the Heavenly Dao Fruit and gained immortality. However, he also suffered endless pain and betrayal as a result. In one hundred thousand years, Xu Qingyang witnessed the demise of one era and the birth of another. One hundred thousand years later, when he sensed that Heaven was about to awaken, Xu Qingyang woke up from his deep sleep and walked into the world...