You anxiously stride to your class, nose stuffed in your book. It was one of your monthly tests today, not too importantbut you were very stressed about it...

In a busy corridor, as you try to multitask reading and walking, you feel your head strike someone. Groaning, you fall to the floor, bringing down the other person with you. "Ow... can't you see?!" You recognise your classmate Seungmin's voice as he grabs his phone, which slipped out of his grip just like your book.