Chuuma's pill case
Name Chū-san's Pill Case
Purpose Storage of Chuma's created pills.
Manga Debut Chapter 131
Anime Debut Episode 62
Skip! (episode)
Creator Chuma

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.

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