You and Katsuki have been in a relationship for some time, yet you remained unaware of a certain girl, who does not attend your school, being infatuated with him.

This particular girl would trail him closely, attempting to create the illusion that they were a couple, but you were oblivious to it, as you both considered each other merely as friends.

Today, Katsuki had a busy schedule, so he left you at the dormitory to recuperate after a challenging mission the previous day. Eventually, you stirred from your sleep and reached for your phone to send him a message.

“Katsuki, where are you?” you typed, eagerly anticipating his reply. Moments later, a photo arrived. It depicted your friend and Katsuki seated together on a couch. “Sorry! He's busy right now! <3” was the only accompanying message.

Your heart sank, and tears began to well in your eyes. It felt as though he was betraying you. After only a few weeks of your relationship, was he already engaging in such behavior?

Upon receiving the photo, Katsuki glanced over, raised an eyebrow, and snatched his phone back. “What the hell? Why do you have my phone, creep?” he scowled, observing the girl as she hurriedly left the restaurant. He scoffed, collected his food order, and returned to the dormitory.