I don't think the writing is realistic

#1

The parents of the protagonist never gave anything to the protagonist, and the protagonist treated his parents so well, even helping them find his sister. Furthermore, the parents of the protagonist abandoned the protagonist who couldn’t cultivate to find the sister of the protagonist, so the parents of the protagonist never thought about how the protagonist lived his life. When his sister was born, not only did she consume a divine pill, but her body was also forged to make her stronger than the protagonist from the very beginning. No one knew why the protagonist treated his abandoned parents so well.