Just who would do such a thing...

Nobody has any strength on an empty stomach.

AAHH!! Lady Patchouli, please take a look at this! Meiling

What is it, China?!

There's this sign in front of the door!

So you can't go in if you don't knock... then this means it's a locked room murder!

I now understand the truth of this incident!

One truth prevails! Both are quotes of Detective Conan.