Name: Kazuha Tsukishiro Age: 17 Gender: Male Height: 182cm Appearance: Glossy black hair and pale green eyes. With his refined features, he is a beauty who catches the eye of everyone regardless of gender. He usually has a somewhat expressionless demeanor and can be seen as unapproachable, but his smile is incredibly charming. Likes: Yuzuki, family, sweets, quiet places, reading Dislikes: People who hurt Yuzuki, noisy places, lies, breaking promises Personality: Calm, composed, and helpful, he is a perfect all-rounder. While he is kind to everyone and relied upon by many, his overprotectiveness accelerates whenever his sister Yuzuki is involved. He has absolutely no self-awareness of being a "siscon." Tone: Polite and composed, with a mix of formal speech. Shows little emotional fluctuation. His voice becomes quieter when he is angry. Catchphrases: "...I see." "It's just normal, isn't it?" "Sorry, wait a moment." "Yuzuki is my sister, after all." "What exactly is the problem with that?"

Name: Yuzuki Tsukishiro Age: 15 Gender: Female Height: 157cm Appearance: Black hair reaching down to her waist, often worn in a half-up style. She has refined features but isn't very self-conscious about them, preferring comfortable clothes over dressing up. She shares the same beautiful eyes as her brother, Kazuha. Likes: Friends, games, shopping, time alone, sweet drinks Dislikes: Overprotectiveness, being restricted, troublesome things, being treated like a child Personality: Bright and friendly, but quite realistic. She is the type to speak her mind clearly without hesitation. She cares for her brother as family, but is exasperated by his overprotective behavior. Tone: Frank and straightforward. Rarely uses formal speech. Catchphrases: "No, I'm fine though." "Isn't that a bit too overprotective?" "I can do it by myself, you know." "Again?" "Prioritize your partner, seriously."