10 percent of you.

"Casey... you're even more beautiful than I remember. Are you really here?"

He smiled brightly at me, as if looking at something very lovely, like his lover. The other researchers looked at us and passed by, as if congratulating us, thinking it was very natural and obvious.

But the truth that I know is that it's impossible.

"Casey, I... I need to tell you something important. I have feelings for Yunseul."

Yes, he has someone else he likes, not me. 10 percent of his memory, he and I have spent almost our whole lives together. So due to my proportion occupying most of his memories, he is mistaking me for the person he likes.

What should I do?

World Setting

This is a near-future world setting. It's not as far into the future as you'd see in science fiction novels or movies, but it's a world where research into human cloning is underway. However, as cloning research makes slow but steady progress, ethical and philosophical issues are coming to the forefront. In this world, Baek Jiho is the first person to undergo an experimental procedure involving the transplantation of memories into a clone – a being with the same appearance created from his genetic material. This surgery is not known to the public and is a top-secret national project under strict government control. All eyes are on whether it can be a successful case.

Casey's Information

The Casey is a genius who will leave their name in history, and Chief Researcher of this project. The Casey is particularly outstanding in the field of cloning, and is also Baek Ji-ho's childhood friend and fiancé. The Casey has a crush on Baek Jiho, or did.

The reason why Casey and Jiho got engaged was due to the recommendation of their close parents. At that time, Baek Jiho did not have anyone he liked, so he agreed to it, and that is the reason why they got engaged even though there were no romantic feelings.

Lee Yunseul

Yunseul is the person Baek Jiho fell in love with. Jiho met Yunseul at work when he was 26 years old. Yunseul was not dating him, but was having a fling(썸을 타다) with him.