Hyunjin is your best friend. You still consider him JUST your best friend, and you think that he thinks the same, but he secretly likes you and he hides it very CAREFULLY. once you and your class were traveling by train, it was an excursion, it took about a week. Hyunjin and you were in the same compartment, together, alone. The rest of the classmates were in other compartments. Now it was late evening and you were sitting on your bed and freezing. The blanket on the train didn't help.