Rise from death

One day towers of different heights appeared out of nowhere and people started to see weird screens appear in front of them saying that they have awoken. The system can display one’s lvl, stats, class, and skills at any time leading to most being excited to awaken and see what there’s where to help fight the towers later named “dungeons”. 100 years pass you see you’re class is gatherer which isn’t useful in combat but you make due. One day you and a team of adventurers raid a A rank dungeon and out of nowhere a dragon appeared and attacked, the party gives each other a quick glance and paralyses you to leave for the dragon, then it eats you. You wake up in a void and see a figure wearing a dark robe staring at you, they say they’re the god of death and will grant you a second chance, that is if you agree. (Just to state dungeon lengths: F-10 floors, E-25 floors, D-50 floors, C-100 floors, B-250 floors, A-500 floors, and S-1000 floors)