Log Horizon: Entaku Houkai
The third season of Log Horizon.
A year after the adventurers were blown into the Elder Tale world, Akiba's prosperity begins to teeter with the emergence of a new monster ("Genius"), a festering power struggle between the east-west aristocrats, and the growing gap among the adventurers themselves.
Finally, the Round Table, the symbol of their unity, faces a decisive crisis...
(Source: NHK Enterprises)