Just two short lines of dialogue revealed a wealth of information—more than enough for the audience closely monitoring Uncle She and Yu.
[I think we can add one more detail. Uncle She seems to have the last name Tang?]
[If I didn't mishear it... it was indeed mentioned that his last name is Tang.]
[Wait a second, I think I heard the words "Shushu"—which Shu are they talking about?]
[Hold up! Doesn't this combo seem a bit... odd? Tang Shu? Tang Shu?!]
[Errrrr, calm down, calm down. It might not be the Shu from Tang Shu, and it could also mean Tang Something Shu, or maybe Tang Shushu?]
[To the person above, your attempt to reason your way out of this feels kind of like a desperate rescue effort...]
[Just admit it, accept the reality: She and Yu combined spells out Shu, and I finally know why Father She's voice sounded so familiar—it's literally like Father Tang! Did you all forget? The Father Tang living in Tang Village!!!]
[...]