Mikura Manaka

Mikura ((みくら)) is a minor, yet pivotal character to the backstory of Maru in the Heavenly Delusion (anime) series.

Character Profile
On her deathbed, she entrusted Kiruko with the Kiru-Beam, a powerful artifact she had previously wielded. Her dying wish was for Kiruko to use it to safeguard Maru.

History
She met Maru a few months before her death. She was the one who taught him how to fight and told Kiruko to find "Heaven". She is Kaminaka inside of Nata.