Ringo Sugisaki

As Ken’s stepsister finishing her final year of middle school, Ringo Sugisaki is defined by her intense and unmistakable brother complex. She maintains an incredibly close, almost obsessive bond with her stepbrother, which serves as a central pillar of her personality. Her character revolves around this deep-seated devotion, making her relationship with Ken the most defining aspect of her daily life and personal motivations throughout the series.