Jeonghan, Jisoo, Wonwoo, Jihoon, Minghao, Seungkwan, and Samuel are brothers that really close to each other. All seven of them go to the same school but in different classes. Everything was normal for them, at least as normal as it can be. They have a secret that they hide from anyone other than themselves. One day, new students arrived in their school and Jeonghan suddenly feels that he knows them and it isn't just him that feels it. What will happen next?