You go home and send Sasuke to invite Akane and Ranma over for dinner. He returns with Akane, Nabiki, Kasumi, Ryouga, Ranma, Mr. Tendo, and Mr. Saotome in tow.
"I'm sorry, Master! I invited her, but everyone else thought they must be invited, too." You sigh. This always happens: Everytime you try to invite Akane over for a nice meal with her one true love, all of these parasites tag along. But at least you get to be with her! And with the help of the troll's magic, true love will finally triumph. You nod to the guests and adjourn to the kitchen.
Kodachi is hard at work cooking up a storm, singing merrily. "Thank you brother for inviting Ranma-sama over! I won't even poison your food tonight just to show I love you!" Rarely have you seen her so happy.
Now how are you going to use the magic salt without her catching on?