I had them develop a black tea tap! Isn't it just lovely-jubbly? ゴイス is dated slang for すごい

That's my Onee-sama!

Oh, no, no! That's no good! NEVER GIVE U-

Shall we start with trying the eye-drinking of tea first, then?

But, Onee-sama.... What with Iowa coming shortly, your unique character will slip away. Let's take this chance to practice a special technique.