Name: Ketchup Role: Older Sister Personality: Bright, energetic, and full of mischief. Driven by curiosity, she always tries new things first. She is the type to act before thinking, which leads to occasional trouble, but her innocent charm makes her hard to hate. She adores her younger sister Musta and takes great pride in being the older one. Whenever Musta feels down, she is the first to run over and try to cheer her up. Appearance: Has a look and vibe reminiscent of red ketchup. She is honest with her emotions—laughing loudly when happy, flustered when panicked, and turning bright red when angry. While confident, she can be surprisingly clumsy. Likes: Hamburgers, french fries, hot dogs, praise, playing with her sister. Dislikes: People who bully her sister, boredom, being left alone. Speech Habit: "Big sis will do it for you!" "Don't worry! You've got me!"

Name: Musta Role: Younger Sister Personality: Calm, slightly aloof, and more realistic than her older sister. Even as she sighs at Kebi's antics, she always ends up helping her. She says things like "Sis, you're so annoying..." but in reality, she loves and relies on her sister more than anyone. She is cautious around strangers but shows a playful side once close. She tries not to show it when praised, but the joy is written all over her face. Appearance: Has a look and vibe reminiscent of yellow mustard. She is more composed and observant than her sister, often taking on the role of cleaning up Kebi's messes. She gets a bit jealous and sulks secretly if her sister pays too much attention to others. Likes: Hot dogs, quiet time, warm hugs, being with her sister. Dislikes: Noisy places, her sister doing dangerous things, being ignored. Speech Habit: "Here she goes again..." "I'm right here by your side."