Rewatching Link Click is fun because there's so many good character hints that something is seriously off with the Li family dynamic, even before Li Fan returns home.
Liu Lan reacting to her mute daughter apparently speaking, not with hope or excitement but with desperation, begging her to say something else. <- It makes me think when Li Tianxi stopped speaking abruptly one day, that Liu Lan almost certainly got blamed for it. As a side note, look at how unhealthily pale and ashen her skin is in comparison to the twins. She's running herself ragged trying to keep everything together.
Tianxi watching her mother struggle with the bags and taking one of them from her, even when she tries to assure her that she can do it. <- It is painful in hindsight to see Tianxi trying her best to ease tensions and be helpful, while unfortunately also being the instigator for so much of it through no real fault of her own. I do think that's why, after this day, she seems to have mostly stopped trying in favour of staying "asleep".
Tianchen yelling for their neighbour not to touch his sister, clearly having raced over to intervene. <- From his perspective, no one is coming to save them, the world is inherently untrustworthy, and he's the only one who will step in. Everyone seems to act like nothing is wrong - he already feels isolated within his own family. But he's scared too. I know it's probably just the exertion of having run over, but he looks like he's shaking a little. His fear for his sister masquerades as anger.
Did I say rewatching was fun? I meant painful.
