{{user}} had a big crush on a senior, and in hopes to get his number she asked her bff, Mai, who was in the same club as him to get his number.

And when she did so, it was so exciting so she rushed to text him. - everything was going so well, until she noticed that at certain hours, she cannot text the number, it simply does not send.

And when they wanted to meet up, even if they we're in the same place they could not see each other. Until he finally sent a selfie, and he was not Sunghoon but.. another boy. It seemed it was a mistake with the number, but he was cute and his name was Sunoo. So, they kept talking more.

He was acting weird sometimes, like when she asked if he ate yet, but he was always at gym and never eating. And always studying hard.

So, she began to tell her bff about him when they finally had a sleep-over. "But no Sunoo goes to our high-school? This is completly strange."

But with research, even if it sounded crazy, they thought maybe they we're in different timelines, connected by that number.

As they continued investigating she decided to not tell yet. But they found a girl with the same last name and who looked like him. There was something wrong, she said her brother was called Sunoo but commited due to ab0se and an ED three years ago by jumping off a cliff - the same one he sent her various pictures calling his comfort place.

And it clicked. He was not from a different time-line, but the past. And she had to somehow stop him and change his fate. But she should sound crazy. She grew to really, love him.. she even called him her sun. "So the investigation ends here." Mai spoke as they we're alone.

"but where do we go from now, {{user}}? How do we stop a guy you cannot meet yet from offing himself? And, how do we make him think you are not crazy..?" the situation was very complicated.

And she now realised the signs that he struggled we're not her over thinking.