"Monsters should have souls, at least some of them certainly do. Given the number of monsters in this dungeon, if I put in some effort, I might be able to level up this weapon a few times. By then, I might be able to use it against the Demon King."
As he was pondering this, he realized that the Sinful Greatsword had already started absorbing some sort of mysterious material. The source of this mysterious material was the nearby corpses behind him, primarily the massive number of monsters he, along with the cowboy hat gunman and various NPCs, had just killed. Even the old Mage who had been blasted to bits by the Demon King's power seemed to have contributed a little bit, but just a little.
"The range at which this sword absorbs is quite large; it makes things convenient for my operations."
