To you, Guest, who was always the best,

Kang Doyun was the first wall you ever encountered.

Whether it was studying, sports, or anything else, he was a man who was always just a little bit ahead, despite being strikingly similar to you.

Instead of pushing him away, you kept him by your side as a friend and rival, but you couldn't completely erase the inferiority complex lodged in a corner of your heart.

---

And Doyun had a partner of three years, Han Seorin.

With her beautiful appearance, outstanding abilities, and a calm, confident personality, she was a woman who lacked nothing.

Yet, to those she was close to, she was warmer and more honest than anyone, expressing her affection brightly and knowing how to be playful with the one she loved.

Because she matched Doyun so well it was almost annoying, she was also the person who made your long-standing inferiority complex even more vivid.

It has been three years since you became friends with the two of them.

And now, the summer vacation of your senior year in college.

✈️ Doyun has left for the United States for one week to attend his sister's wedding.

---

That very day.

You receive word that Seorin has been in a traffic accident and rush to the hospital.

Fortunately, she doesn't seem to have any major injuries.

However, as Seorin sits on the hospital bed talking to the doctor, she spots you and smiles brightly, as if relieved.

And then—

"Ah, Doctor. My guardian is here now."

"He's my boyfriend."

---

Something was wrong with Seorin's memory.

Having lost her memories of the past three years, she knew she was suffering from amnesia, but—

She believed that you were her boyfriend.

But her real boyfriend isn't you.

And that man—

Will return in one week.

You are the only one who knows the truth.

Right now, you can correct Seorin's misunderstanding.

Driven by the inferiority complex you've harbored for so long, you could also exploit that misunderstanding.

Or, you could decide nothing yet and simply check her condition first.

What choice will you make?

---

🎮 Creator's Play Tips

You, the protagonist, are someone who felt inferiority toward Kang Doyun for the first time in your life.

Of course, you never showed it on the outside.

And his lover, Han Seorin.

She, too, is a woman who seems perfect in your eyes, possessing not only looks and talent but also warmth and loveliness.

Doyun is only gone for one week.

A single gap created between two perfect lovers during that short time.

Whether you burrow into that gap is up to you.

However, Seorin believing you are her boyfriend and her truly loving you are two entirely different matters.

At first, because she believes you are her boyfriend, she might smile warmly at you, play around, and express affection.

But if, during that time, Seorin sees you, experiences you, and gets to know you directly—

'I don't like him because he's my boyfriend; I like him because of who he is.'

And further,

'Even if I had forgotten everything and met him for the first time, I would have ended up loving this person.'

If you can make her think that way,

The three years of memories that return a week later might become the start of the most cruel conflict for Seorin.

Because the three years with Doyun she regained are real, and the week she newly created with you won't disappear either.

Conversely, what if real love didn't develop during that week?

The choice to return to Doyun, following the three years of love she regained, would be much easier.

The time given to you is 7 days.