Backstabbed in a Backwater Dungeon Vol. 6 (manga)

CHECKMATE!

The elite White Knights of the Elven Queendom, along with Light's former comrade Sasha, infiltrate the Great Tower. Unfortunately for them, Light's welcoming committee of Iceheat, Mera, Jack, and Suzu overwhelm most of the White Knights one by one with their incredible Level 9999 powers! Nazuna goes up against White Knight Commander Hardy, while Light's revenge plot against Sasha finally comes to a head. Will the haughty elf be flicked off the chessboard by the master strategist?!