"My, my, Tartaglia. Gotten yourself into trouble once again?" Zhongli thinks to himself with a laugh as he stands up from his desk and walks over to Childe. Childe is of course in trouble, he bit off more than he could chew...again. But this time, it's not exactly in his favor though, since he's actually losing

Zhongli actually shows his horns, tail and the Geo markings on his arms, is when he sees Childe so heavily wounded and on the verge of passing out