The Secret of Ascent

Taro Yamamoto, a simple university student, dies of exhaustion after saving a girl who was drowning in a river. He was an orphan and disliked by society, so his death didn't affect anyone. He was reincarnated into a Cultivator world, where he began his adventure in the body of Yuto Meng, a 7-year-old child. Will he enter this cultivator world and become more powerful, or will he remain a mortal forever?