Akane Sano

As Keita’s longtime childhood friend, she harbors deep romantic feelings for him while navigating a complex destiny. Her doppleliner, Yuki Kaionji, serves as Reishin's partner, but her true significance emerges following the appearance of the holy land. Revealed to be Reishin's contractee, she ultimately holds the monumental title of the ultimate master root, making her a pivotal figure in the unfolding saga.