What is the pen name of the manga artist Jiko Koboshi, who is Gian's sister?

Hello! Regarding Jaiko's (Gian's sister) pen name, I've got the answer for you.

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Jaiko Gouda's Pen Name is "Christine Gouda"

That's right, it's this very stylish, even somewhat Western-sounding name—Christine Gouda (Original Japanese: クリスチーネ剛田).

Why This Name?

• Striking Contrast: Think about it. Her brother is the rough-and-tumble Gian (Gouda Takeshi), yet she gives herself such an elegant, artistic pen name. This contrast is really interesting and is a fun detail in the Doraemon series.
• Manga Artist Dream: Jaiko has always dreamed of becoming a great shoujo manga artist. For a dream-filled girl, choosing a professional and impressive-sounding pen name is a way to express her aspirations and package herself for the future, much like many writers and artists adopt pen names.
• Character Design: She's always depicted wearing a beret, diligently working on her manuscripts. The pen name "Christine Gouda" perfectly fits her image as an "artistically aspiring girl."

Although her manga wasn't well-received early in the series (even causing some commotion, like when Nobita and the others went to great lengths to avoid discouraging her), Jaiko's passion, dedication to manga, and her visible efforts to improve have made her a beloved character.

So, next time Gian's sister comes up, you can confidently tell everyone that this future manga superstar's pen name is the illustrious Christine Gouda!