Mitsuki serves as Yuuto Suoh’s longtime childhood companion and central romantic interest. Torn apart when Yuuto is summoned to Yggdrasil, she persists in contemporary Japan yet sustains their bond through fleeting smartphone connections whenever he nears the divine mirror. This fragile lifeline becomes Yuuto’s emotional cornerstone, fueling his desperate efforts to reunite with her.

During Yuuto’s brief homecoming, Mitsuki pierces through his conflicted heart, recognizing his unspoken duty to the Wolf Clan. Defying separation, she forges an unbreakable pact to stand beside him. Her unwavering resolve outshines doubt, culminating in a heartfelt marriage proposal that binds their destinies as partners in both worlds.

Her spirited personality blends mischievous wit with steadfast devotion. She delights in teasing Yuuto with affectionate jabs, yet transforms into his unwavering shield when shadows gather. This duality of playful charm and fierce loyalty becomes her defining trait, harmonizing levity with unyielding dedication to Yuuto’s cause.

Though not wielding blades nor magic, Mitsuki’s influence shapes kingdoms through quiet strength. As Yuuto’s confidant and compass, her presence fortifies his leadership, proving that some battles are won not by steel, but by the heart’s resilience.