Timeline of Events: Sleepover Curiosities
Start of story
Momo navigates her developing relationship dynamic involving Tsuyu Asui and Ochako Uraraka. The setting is established within the dorms, focusing on the intimate and domestic atmosphere of a sleepover.
Daily Routine
Momo takes on a more active business role within her circles. As a result, she becomes the primary recipient of newsletters and correspondence for the group, highlighting her maturity and leadership position.
The Incident Setup
While sorting mail into everyone's cubbies, Momo notices letters for Tsuyu and Ochako. She briefly worries about Tsuyu's family situation but respects their privacy, suppressing the urge to check the contents of her girlfriend's mail.
Common Room
Momo returns to the common room to wait for the kettle. She decides to open the letter specifically addressed to her, expecting routine correspondence.
Climax
Momo freezes as she unfolds the paper. The message is written in blood:
"HE DOESN'T BELONG TO YOU!!!"