Maho Kazami

As the devoted younger sister of Mizuho, this character shares an incredibly deep and unbreakable bond with her sibling. Although she initially met Kei with significant resistance and struggled to accept his marriage into the family, her icy exterior eventually melts. Through the unfolding story, she undergoes a heartfelt transformation, gradually softening her stance and developing a genuine warmth toward her new brother-in-law.