Synopsis: Summoning demons—I am the Abyss

Lin Tianhao, who has transmigrated to another world, attends the Job Change Ceremony and ends up taking on a sewer-tier job Summoner.Just as everyone is mocking him, believing his future is doomed, he suddenly awakens a system and binds the identity [Demonic Sacrifice]!Who says the Summoner class is trash? I have the strongest SSS-rank talent!