When Sonya and Dia stepped into the River of Flowing Gold, they finally understood why Ashe had hesitated before entering. While it was true that time did not inflict any damage on them, that did not mean time could not hold them back.

The River of Flowing Gold was forged from boundless knowledge, with every single drop of its water containing an entire mortal lifetime. Simply witnessing the river itself was enough to rapidly increase one's experience in the Time Class. 

Under different circumstances, sorcerers willingly endured the torment of aging to bathe in these waters, hoping to gain entry into the Time Class. To Ashe and his companions, however, this influx of data was nothing more than unnecessary noise. Having already reached Gold Rank in the Time Class, they could no longer absorb any meaningful nourishment from it. It was like solving a hundred basic arithmetic problems; the repetition would not improve your mathematical understanding. 

"After me," Ashe said before diving straight into the River of Flowing Gold and swimming downward.

The resistance...