Satoshi and Yuka find the key inside the cabinet in classroom 1-A after smashing the window in it using the nail puller. After finding the key a new corridor appears in the first floor, which has a door at the end. The siblings use the key to open the said door and proceed to the second wing.
Corpse Party: Blood Drive
CHAPTER 10 『 Reparations 』
Ayumi and Aiko find the key inside the reference room. The two girls read the note on the book shelf that says "Thank you for killing me. I'm going to die now. Goodbye!". A spirit of a woman appears and either of the girls (depending on which one you have selected) will use a Talisman to seal the spirit. It then drops the tiny key.
It is used on the cabinet in the third floor east hallway, which gives you the ability to store the Glass Ball inside, unlocking a secret name tag.
- While the item is similar to the Front Door Key in both usage and design, it opens a different door.
- The front door key opens the door to the second wing, while the tiny key opens the door to the main building, both leading to the same walkway.