It's because she ignores Meiling Onee-chan, even after you invite her to a meal.

That person in the library is also very gloomy...

Sfx: Nom

Don't say things like that too much.

Hmm...

Well ok, every point she says is true...

I couldn't change a thing...

Ah...

I'm so powerless...

Mei-ling Onee-chan, what you gonna do today?

Oh? Ah-...

The Mansion's cleaning is over with so...

...probably fixing up the garden that was abandoned.

Sfx: Wash Wash