Summoned with an SSS-Rank Portal Skill Novel

William and his college classmates are transported from Earth to Aethel, a dying world where they each receive extraordinary magical abilities—except William, who remains powerless and becomes a despised outcast among his gifted peers. Unknown to others, William possesses a secret SSS-ranked skill: the ability to travel backward through time. This power allows him to study lost magic directly from ancient masters, access materials that no longer exist in Aethel, and even raise legendary creatures from their eggs. While his classmates learn about historical figures and dream of impossible feats, William can witness the first mage firsthand, hatch and train a dragon as his companion, and obtain rare resources unavailable in the present world. Though others might view his advantages as unfair, William embraces the extraordinary powers the universe has granted him. Armed with knowledge and abilities drawn from the past, he must navigate the dangers of both eras to ultimately surpass his classmates and become the true savior Aethel desperately needs.