Seeking Immortality for a Lifetime

[Traditional fantasy + mortal cultivation flow + non-rebirth + no system + strict logic + not brainless + single female protagonist] This is a world where one can cultivate immortality, but it is out of reach for mortals. In some remote places, mortals don't even know that there are immortals in the world. The protagonist Ye Qidong was born in Dongning Country, an extremely remote mortal country in the Eastern Region. Due to an accident, his family suffered a disaster and his people were scattered. Ye Qidong lived with his mother in a seaside fishing village. He thought he would live a peaceful life... But a few years later, the crisis came again. Ye Qidong's mother unfortunately died, and he was found by the Ye family. Little did he know, his fate would also change...