When Cioccolata was a medical school student, he would occasionally visit a certain biological research institute from time to time.

He was said to have a promising future in medicine, and thus he was given special permission to tour the facility at will.

However, there was only one place where he couldn't enter.

This is the only door I can't open. Why is that?

Behind this door is where "the byproducts of the HARUNO Project" are stored.

...That's all I can tell you. After all, you are an outsider.