Zu-chan (ズゥちゃん, Zuu-chan), or just Zu, is another avian mascot for the Chiba Lotte Marines, the youngest of the 4 mascots. He is Mar-kun's younger brother as well. He's pretty sure that he knows a little more about baseball than you do, pal, cause his brother invented it (or so he says)! Not known to anyone, he secretly has a crush on Buffalo Bell.

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