As a Bastard Adventurer, I Update a Lot of Tricks Every Day

Once he traveled to another world, he found that he had become the most useless black iron-level adventurer in history. He had zero talent in magic, was a scumbag in martial arts, and was so hungry that he was chewing tree bark at the beginning. Fortunately, God's "favor" allowed him to randomly update an ultimate skill every day: Come on, get bigger quickly, Dragon Explosion... But the price was a permanent disability in his body. I thought I could win by cuddling in the lap of my gentle sister, but my teammates died tragically one after another. The savior turned around and ran away by defrauding him of money and sex. "What ultimate move from the underworld has been updated today?" "It doesn't matter, sooner or later I will win the world, including those who laugh at me!" This is a counterattack story about a bad time traveler who uses the most unreliable skills to fight the most arrogant game and become the most asshole winner.