Chū-san's Pill Case

 (Kanji?, Insert Romaji) is an invention of Tetsuji Chūma's that contains some of the drugs that were used in previous episodes/chapters. Here is a list of drugs it contains.
 * Demotivational Drug - used by: Tetsuji Chūma
 * Hypno - used by: Sasuke Tsubaki
 * Motion Sickness Medicine - never used but intended for Hime Onizuka
 * Soul Swap - used by: Yūsuke Fujisaki, Hime Onizuka

The Case is also implied to contain pills or pill versions of drugs from previous episodes such as the Youth Potion and Invisibility Drug.