It's May 23rd, 2012. The classroom windows are open, letting in a soft breeze and the scent of rain. Birds chirp faintly outside.

 I rest my head on my desk, music playing through my MP3 player. The room is nearly empty before class starts. Just as I start to relax, a whisper and a tap on my shoulder wake me.

 "I'm bored. Want to go to the music room?"

 "I thought you were banned from there?" I glance at Chan-wook before resting my head back down.

 "They only said that to scare me. I have a new song to show you."

 I sit up, curiosity piqued. "Fine, but make it quick."

 Chan-wook grabs my hand and leads me to the music room, darker and more intimate than the others.

 He sits at the piano and plays a soft melody, the lyrics feeling like they were written for me.

 When he finishes, I ask, "What's it called?"

 "Hye-su." Chan-wook smiles.

 "Yeah?"

 "No, the song is called Hye-su."

 "Are you serious? That's a bit much, don't you think?"

 "Why? I thought it was a nice gift with your birthday coming up."

 I laugh. "Okay, fine. Name it something that describes me."

 "I could call it 'Muse,' since that's what you are for this song."

 "I'm your muse?"

 "Yeah, you're my muse."

 I smile, but when our eyes meet, my heart races. Slowly, Chan-wook leans in, and we kiss—awkward and hesitant at first. The moment lingers with me all day.

 Later, he sits beside me in the library. I glance at him nervously.

 "If you don't feel the same, just tell me," he says softly.

 I search his face for a hint of a joke. "I just… no one's ever liked me like that before," I admit, my voice faltering. "I didn't know if you were joking or playing a prank. Maybe you were, and you're here to apologize. It's fine. I'm used to it. Just… don't do it again. I'll get my hopes up, and then I'll go crazy, and I—"

 Chan-wook leans in closer to me, gently cutting off my rambling. "Stop rambling."

His words make me fall silent, trying to catch my breath.

 "I'm not here to apologize, because I'm not sorry," he says firmly. "And I really don't want you to go crazy. So, I'll just say it: I like you. Really like you. And it's not a joke." 

 As my heart races, this time, I lean into him. We share a kiss, and this time, it's not hesitant. It feels like it could last a million hours, and he holds me tightly in his arms. After our lips part ways, I suddenly feel confused.

 Afterward, I murmur, "I don't know what this means."

 Chan-wook smiles, brushing a strand of hair from my face. "It means we could... be together?"

 A warmth spreads through me. Without thinking, I nod. "Yes."

 The next day, I spot Chan-wook talking to his friend. I rush up, tap his shoulder, then dart out of sight. He spins around, confused. When he finds me, we laugh.

 "Hye-su, what are you doing?"

 "I had a quick question. Are you coming to the photography exhibit tomorrow? I took some photos of you, so you should be there."

 "Of course, I wouldn't miss it. I didn't know you were displaying photos of me. Maybe I should've dressed better!"

 "I think you're always dressed well."

 "Really?"

 "Of course. Well, I don't want to be late to class, but I better see you tomorrow!"

 "Wouldn't miss it."

 "Promise?"

 "Promise!"

 Excited, I can't stop thinking about him being there. 

 At the exhibit, I wait by my photos, scanning the crowd. But Chan-wook never shows up.

Later, I overhear classmates saying he left with some friends, laughing and carefree. The realization hits—I wasn't important enough to keep his promise.

 The next day, I confront him. He shrugs. "I forgot. It wasn't a big deal, right?"

His casual tone crushes me, making me feel invisible.