Devil Summoner, I am the Abyss Lord

Lin Tianhao, who has been transported to a different world, participates in the Job Change Ceremony and unexpectedly ends up choosing a "sewer-tier" job as a Summoner. As everyone ridicules him, convinced that his future is bleak, he suddenly activates a system and acquires the skill [Demonic Sacrifice]! Who claims the Summoner class is worthless? I possess the most powerful SSS-rank talent.