Uyeoningayo?

Ju-Yeong, who was forced to become the Student Council President, picks up a strange book in the Student Council Room. Right after, he ran into Sang-Hyeok, an infamous delinquent in school, who made a ruckus in the hallway. Before he knew it, Ju-Yeong came home with the book in his hand. After that incident, Ju-Yeong kept on getting strange dreams of Sang-Hyeok... as he becomes conscious of the latter. What is to become of this encounter? (Source: Bomtoon, translated)