This really is a question, and ever since she lost 10 pounds during her last hospital stay, no matter how much she tries to gain it back, her weight just won't budge—in fact she's only managed to put on a single pound, so in total she weighs just 89 pounds. If it weren't for how lively she seems every day, both Tianyu and Ziyu would have already taken her to the hospital for a full check-up.
But she's just this healthy, eats well, sleeps well, and is full of energy—just never puts on any weight.
Because of this, when Keke looks at her now, there's a bit of 'resentment' in her gaze, and she's always muttering, "I gain weight no matter what I eat, I even gain weight from drinking water, but you—nothing sticks! You exist just to piss me off."
And then Mengzhen just has no comeback—no matter how she responds, it's bound to bruise Keke's delicate little soul, so she could only suck it up and take the hit.
