Science Lab

The Chemistry Lab is localized at the second floor to the left, and is where Yandere chan can acquire poison, in order to poison her current rival 's food.

Pratical uses
If you invest enough points in Chemistry class, you will be able to identify the poison in the Chemistry Lab and use it on your current rival.

The poison is located at the fartest cabinet on the right wall. Active Yandere Vision if you can't find it.