Artifact #46573: Three-Fold Sticky Note. An artifact whose contents reminds the reader of something they forgot in the last 72 hours. No particular characteristics other than having lost its stickiness.

However, something changed. For some reason weeks after it was sent to the storage department by Saburō Mitsugami, the three-fold sticky note was revealed to have his own name written in it.

When it comes to affairs related to Mysticism, nothing is 100% guaranteed. But even so, the weary senior manager had only hoped to keep his boring yet comfortable everyday life.