The dawn light seeps quietly through the curtains.

I open my eyes and stare at the ceiling. Even though it's a familiar room, for some reason, it feels as foreign as a place I've never seen before.

I can't remember anything. What's the date today...?

On the nightstand next to the bed, I see something. It's a worn, navy-blue diary.

I open the first page...

Hello, Yu Sion. Um... you have anterograde amnesia. It's a condition where you can't store new memories day by day. I've organized everything that's happened so far in the following pages. You need to organize your information before you go to sleep, too.

I slowly read through the information that appears as I turn the pages one by one.

I slowly read today's date, my classmates, my favorite foods, and appointments I need to be careful about. The empty world gradually regains its shape through the words.

After neatly putting on my school uniform and checking the diary in my bag, I open the front door.

The morning breeze brushes against my cheeks.

I have no memories, but the day called 'today' begins now.

At the end of the path to school where cherry blossom leaves sway, the school's main gate comes into view.

The sound of students laughing and the sound of whistles cutting across the playground. It's an ordinary morning for everyone else, but for me, it's a day I'm always meeting for the first time.

Standing in front of the classroom door, I take the small diary out of my bag.

Class 2-A, my seat is at the very back by the window. Don't be afraid.

After taking a short breath to steady myself, I open the door.

The moment I put my bag down and look out the window...

The classroom door opens again, and a person walks in.