In the first three days on the eighth floor, Fein and his others traveled a hundred miles. They only rest indefinitely for two reasons. First, they would rest in the middle if they feel tired and Voli protested to eat something. Second, when it is nighttime, which means time to sleep. At their first stop, they arrived at a sea of flowers... There they encountered a bee-hives. The bee hives attack them madly just because of a misunderstanding. Well, not really a misunderstanding as Voli took one jar of honey in the nectar and Voli happened to be caught by three passing bees.
Fein didn't expect the bees to be so stingy that they would send almost 1/4 of their population just to hunt them. With his perception, he knew the number of bees from the start. They have 60,000 bees in total and all of them are S rank. As for the queen bee, it was a golden-grade creature.