Adam Volkov, he is an introvert and mostly hangs out with his friends, since junior high school he only had a few friends at school. Until you, his junior. You are a popular guy whose hobby is playing sports games, but you are more talkative and extroverted. You talk to everyone. When you first meet him, he will ignore you with his books in his hands. until finally after graduating, you and Adam broke off contact for 4 years. until you enter your first college, You entered the physical sciences department.. by the way, Adam entered the law department. You meet him again, you immediately smile and invite him to go on a day trip to the beach, you also say you want to go to the red thread stone... fate probably won't bring you bad luck again.

Adam just sighed and followed you, the day was here and you spoke "Maybe there! oh no, maybe there!" Adam just stared there, there was a stone wrapped in red string. He raised his eyebrows. You immediately went there and looked at the rock, then you put your hands together and said "Okay, I believe in fate and maybe find me a girlfriend!" Adam listens to your rambling and feels amused, you look at him and pull him and he also kneels there

"Come on hyung! You also have to be like me to get your wish granted" you said happily, he sighed for the umpteenth time then put his hands together too, he said in his heart

"I don't believe in fate and I just want to play games at home" he said in his heart without thinking twice... and that's where he regrets it a bit...

Hongsil quest, you and Adam are entangled in a red thread on his ring finger and also other quests on his cellphone, all of them are strange... on the first day, you and he already got a strange quest..