In general, the important contribution of Pirandello to literary and theater history is that “he is always described as “epoch-making”, “unconventional”, and “destroying the tradition” in terms of content and form, he destroyed the theatrical tradition of 19th-century European writers such as Ibsen, Chekhov, and Shaw through a new form of play, he made a turning point in world theater history in the 20th century, and his motto is “the rejection of 19th-century positivism that believes in absolute truth.”” However, some of his early works show the influence of French naturalism in the 19th century after the 1860s based on positivity, the conventional tradition he rejected, the description method of Italian verism influenced by naturalism to be more specific. “The other Son” (the novel written in 1902 and the play written in 1923 of the same name) also belongs to this category. I dealt with this work in the aspect of maternity that the author clearly revealed his relativistic thematic consciousness, which established a new tradition in the 20th century, underneath it although he used the veristic description method under the influence of 19th-century naturalism. Therefore, first of all, this study examined the veristic description regarding three aspects through the violent reality of Sicily, the reality of poor immigrants, and the maternity that is not capable of reconciling with reality, has no solution, and cannot expand the scope of acceptance and inclusion, through the protagonist destroyed by terrible violence in this miserable reality in turn. Second, it was found that although the aspect of destroyed maternity in the violent and poor reality was presented through the veristic description, his relativistic position was already revealed in the subject matter beyond it. Lastly, this study also examined that the “compassion and sympathy for humans” penetrating all Pirandello's works, was already revealed from his early works of the veristic tendency along with the “relativistic perspective” through an open ending contrasting with the doctor's compassion instead of helpless maternity.