Summon a demon, and I am the Abyss Lord

Lin Tianhao, who transmigrated into this world, successfully changed jobs to the sewer profession—Summoner—on the day of the job change ceremony. Just as everyone laughed at how his life was doomed, he suddenly awakened a system and bound the identity of [Demon Sacrifice]! Who says the Summoner job is trash? I have the strongest SSS-level talent!