Spirit Evolution

Nicolas was one of the strongest innate power practitioners in his previous world but, his own brother killed him, after death, he reincarnated in a body of 15 years old boy that has 2 spirits in his body and in a world where everything is ruled by people with the most powerful spirits, someone with 2 spirts can be counted as outstanding but, he has a 2 trash spirit that can’t evolve, snake and bird. Will he successfully return to his family and wife in another world or will he die in this new and mysterious world full of Spirit Masters? *The cover is not mine and if author wants me to remove to cover, contact me*