Grandmaster Eren
A Grandmaster Ranked breakthrough was initiated when the world of Anfang was in chaos.
Eren had practically skipped toiling his years away stuck in the Master Rank.
The emotions tied to the Seven Sins that Eren's soul was compelled to nurture after coming into contact with his divine throne had a profound impact.
This connection resonated with his current vessel, enabling him to break through numerous Elemental Attainment barriers all at once.
As Eren advanced in his Ranking Journey, progress became increasingly challenging. His path was so vast that an average Ranker would struggle to advance beyond the Adept Rank even with centuries of preparation.
Eren's multiple Elemental Attainments signified the potential for numerous barriers in his path. Under normal circumstances, achieving a breakthrough into the Grandmaster Rank would have taken Eren at least seven centuries even with his demonic Abilities added into the equation.