Abyss for All: One-Click Synthesis, One-Click Increase!

"Ding! You combine the cross-cutting sword and get the mythical weapon Cross-cutting sword·Nine Secrets!" "Ding! You combine the demon sword Murasame and get the supreme mythical sword Murasame!" "Ding! You synthesize the Blue Eyes White Dragon and get the Supreme God's Pet True Blue Eyes Ultimate Dragon!" ... Lu Yuan accidentally traveled to a world where everyone was in the abyss. Everyone can enter the secret realm of the abyss when they are sixteen years old. As long as you conquer the dungeon, you can get various rewards! And Lu Yuan awakened the god-level synthesis system. Everything in the world can be synthesized and amplified with one click! Seven Deadly Sins, Frostmourne, Eight Swords of the Yue King, Unlimited Sword System! While others are still working hard to conquer the dungeon, just to get a legendary weapon. Lu Yuan has so many mythical weapons that he can't even put them in the warehouse! When Little Mago went bankrupt, he strengthened his weapons and shattered them for twelve consecutive times. Lu Yuan easily increased his power by 20+, and his whole body was at full level of Supreme Myth! A year later, the abyss race invaded and the Twelve Apostles arrived, and they were horrified to discover... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.