The effects of the begin to wear off

While Seiko was being admired by a large number of people in the cafeteria, Ruruka watched everything by peeking through the door, enjoying the

Ruruka pulls the **** she used on Seiko out of her pocket. "If I can get more of this, I can just make her my servant."

Ruruka began to examine the bottle, looking for any ingredients list or any instructions on how to make it when she noticed something she didn't read before.

"The **** effects of this **** will wear off in 20-30 minutes depending on the subject's tolerance to the ****." Ruruka's face went pale, she began to mentally count how many minutes passed by. "About 20 minutes... Shit..." Ruruka said as she looked at her phone.

"Ugh..." Ruruka heard a grunt come from the cafeteria, Seiko had sat and was starting to clutch her head slightly, just like she did when Ruruka gave her the ****.

"This is bad." Ruruka started to quickly pack all of her things into the bag that had Seiko's clothes so she could make a quick escape in case Seiko decided to get even.

Meanwhile, Seiko was beginning to shake off her headache and started to look around at her surroundings.