Underlord · Chapter 9
Seishen Kingdom's Coordinated Attack
King Dakata orders a surprise attack on Blackflame Empire forces in the Night Wheel Valley, with Prince Kiro and Meira specifically targeting Lindon while the Emperor's cloudship is ambushed.
Outcome
Lindon fights Kiro in single combat while Yerin battles Meira; the Blackflame Empire retreats while Lindon, Yerin, and Mercy enter the Akura vault.