What's the name of the girl who laughs in Cherry Maruko?

Excellent voice: Tian (Japanese), Lu (Cantonese) and.

Series actor: Kano Yoshinoya

Introduction: A very gloomy child often hides behind his back and eavesdrops on classmates' conversations or embarrassing news. I like listening to jokes, watching comedies and collecting strange photos, so I can be friends with Maruko, and I will also ask some strange questions to my classmates, because I like to watch them puzzled. When others are chatting, they will suddenly appear from behind and laugh "クックック(KuKuKu)" in a clear voice. The spell is "I don't know, I don't know" and then "クック" has a very loving one. Her grandfather also likes to collect interesting things with her. And an ugly brother who hates meatballs. She has a bad relationship with her brother.