In , titled " Frost Dragon Lord ," Ainz Ooal Gown continues his campaign to subjugate the Dwarven Kingdom's enemies, resulting in the rapid annexation of both the Frost Dragons and the Quagoa into the Sorcerer Kingdom . Key Plot Developments
: The arrogant leader of the Frost Dragons who is summarily executed. Overlord IV Episode 7
: When the Frost Dragon Lord, Olasird'arc Haylilyal , refuses to yield and attempts to attack, Ainz kills him instantly using the spell " Grasp Heart ". After a second dragon attempts to resist and is also killed, the remaining dragons quickly swear fealty. In , titled " Frost Dragon Lord ,"
: Ainz, accompanied by Aura, Shalltear, and Gondo, reaches the royal palace of Feo Berkana , currently occupied by Frost Dragons. He encounters Hejinmal , a "shut-in" (hikikomori) dragon with reading glasses who immediately submits after sensing Ainz's overwhelming power. After a second dragon attempts to resist and