Soul Cultivating Divine System

Xiao san was Reborn in a Universe, Where Strong rules and weak has to obey.  He was born to a powerful family in the Divine realm. As soon as he was born he was abandoned by his family because of his weak  bloodline. After that he was sent to mortal world where he had to live until his Death. When he was living in the mortal world he met a injured female cultivator. Seeing her injuries Xiao San saved him. After being saved by Xiao San she wanted became his girlfriend. Xiao San also agreed to her suggestion because she was a peerless beauty. But after an years time she left Xiao San and return to the divine realm after her injuries were healed.  At the age of 18 he got Soul Cultivating Divine System and became the first soul cultivator in that universe. What will happen next?