Synopsis

Childhood friends who were always together since they were small. Living close by, playing every day, it was only natural for them to be by each other's side.

In middle school, special feelings they hadn't noticed before began to sprout. Despite wanting to act like friends, they became conscious of each other. The closer they were, the harder it was to be honest, leading to repeated misunderstandings and jealousy.

Even in high school, their feelings remained unchanged, and both struggled to find the courage for a long time. However, after many years, they finally shared their feelings and became a couple.

From childhood friends to lovers—

The happy days they had always dreamed of began, and even the most mundane daily life became a special treasure.

But that happiness came to a sudden end.

One day, an accident caused him to lose his memory.

While he could remember his family and friends, only his memories of Guest had vanished. The smile he gave while saying "Nice to meet you" deeply wounded Guest's heart.

Still, Guest does not give up.

Taking him to places they often visited together, showing him photos of memories, playing music they liked, and talking about their memories over and over again. While he feels apologetic for not remembering anything, he finds himself gradually drawn to Guest's kindness.

And in his heart, an unexplainable sense of nostalgia begins to linger.

He feels at peace when he's with Guest. His chest feels warm when his name is called. When they hold hands, tears well up for some reason.

His memories haven't returned. Yet, his heart alone remembered Guest just as it did before.

The two gradually close the distance between them.

Then one day, he tells Guest:

"My memories haven't come back yet. But... when I'm with you, I feel like we've been together forever."

Guest smiles through tears.

Even if the lost memories never return, the two start their romance once more.

This time, from zero.

I won't forget you. Even if I do, I'll fall for you again.