The Sword Bearer of the Abyss

"I dissected 1,476 alien beasts and lived for four years. My memory was so lost that I almost forgot who I was. Until the woman smashed through the ceiling and said: 'Your sister is still alive, come with me, or you will die in three minutes.' I grabbed the scalpel and jumped into hell with her - I later found out that the 'alive' she said was the phantom who was trapped in a time cage and waited for me for four years. The Purity Society wanted to harvest 100,000 people in exchange for 10,000 people with the right to live, and the Star Marrow tribe installed observers in my eyes. , One of my teammates is a century-old warrior who has sealed seven monsters, one is a nine-tailed fox whose memory has been tampered with nine times, and the other is a white-haired girl who uses formulas to calculate emotions. And I am just a medical student who has almost forgotten everything. My major is anatomy-including anatomy of monsters, conspiracies, and... So-called human nature. They say I am a savior, but I say: No, I am just a doctor, using a scalpel to remove the cancer of this world bit by bit. "