Her Royal Highness Seems to Be Angry manga volume 5 features story by Kou Yatsuhashi and art by Neko Yotsuba.

After discovering Cashaal's evil secret behind the creation of Black Magic and the poisoning miasma being wielded by the masked man named Sala, Zeke's locked-away memories of the past have also been released. If Zeke’s memories are to be believed and he truly is the same Nao of Leticiel's past, does that mean Sala is in fact... Zeke's brother from another world?!

In the final volume of the series, join Leticiel and Drossell, along with all their past and current companions, as they combine forces to finally end the torment of war that has haunted the kingdom for a thousand years.