Backstabbed in a Backwater Dungeon Vol. 4 (manga)

After bringing the hammer of justice down on the adventurer-slayer Kyto and his fast-talking accomplice Yanaaq, Light receives some excellent news! Ellie reports that preparations for Light's revenge on Sasha the elf are finally complete. The stage is set for Light to storm the Elven Queendom with all the power he's built up over his three years in the Abyss—and another name is about to be crossed off his ever-growing kill list!