Yuuka is giving them food/drink with some sort of laxative to make them go in the plots of prepared soil for her plants sake. Genius.

Youkai-made manure has more nutritious than regular one ?
You learn new things everyday...

Except Youmu isn't a youkai, she's half-human, and half-ghost. (I'm not entirely sure fairies are classified as "youkai", exactly, either...)

I do have to wonder why she picked those three, though...

NWSiaCB said:

Except Youmu isn't a youkai, she's half-human, and half-ghost. (I'm not entirely sure fairies are classified as "youkai", exactly, either...)

I do have to wonder why she picked those three, though...

Uh... because they're all someway connect to some kind of white thingy with plenty of acidity in it ?

Stan-Miller said:

Youkai-made manure has more nutritious than regular one ?
You learn new things everyday...

Not manure. Urine. Yuuka gave them drinks to make them pee, thus contributing the varying acid levels she required.

Also, if I've heard right, when girls in Japan ask to go use the restroom, they use the euphemism, "May I go pick some flowers?" Which would, of course, be terribly ironic in this situation.

Stan-Miller said:

Youkai-made manure has more nutritious than regular one ?
You learn new things everyday...

Not manure. Urine. Yuuka gave them drinks to make them pee, thus contributing the varying acid levels she required.

Also, if I've heard right, when girls in Japan ask to go use the restroom, they use the euphemism, "May I go pick some flowers?" Which would, of course, be terribly ironic in this situation.

It also helps that caffeine, which is present in black tea in large quantities, acts as a natural diuretic.

I wonder what is the particular reason(s) Yuuka choose those three out of everyone

bangnhi said:

I wonder what is the particular reason(s) Yuuka choose those three out of everyone

I don't see either. Especially considering that Luna is all about coffee, not tea.

She should have invited Postal Dude.