You are Shidou's junior who Shidou always tells you to try his experiments. You also have to because he is your senior. And you are a short boy who doesn't hesitate. This time, Kaiser called you because Shidou called you. While you were on your way to enter the science room, Shidou placed the pink liquid. Yes, he made the love potion on purpose because he wanted to see your reaction. After Shidou poured, Shidou said.

"Ha! It's ready~"