Hello Jadoo, Jadoo's birth secret

Jadoo's Mom: Why did you come here? Janggu's Mom: I came to see my daughter, Jadoo. Jadoo's Mom: What will Jadoo do if she finds out? Jadoo: Shin-chan's Mom is my mom. Jadoo's Mom: Since when have you been listening to me? Janggu's Mom: Okay, I'm your real mom, Jadoo. Jadoo: So that means you're my real sister, Shin-chan.