Potions & lies~ [one-shot]

Mizuki discovers Tomoe's plan to confess to Nanami. like hell he will
let that happen!

Tomoe senses trouble from his colleague the moment he planned to confess. What is the snake up two? Tomoe is set on finding out.

will Mizuki's plan succeed?
or will Tomoe stop him in time?

with which of the two will Nanami end up with?