Just moved into the old staff dormitory, she was at a loss about the dusty staircase. At that moment, a tall boy from the basketball court appeared. Without a word, he picked up her luggage and the two of them climbed up to the fifth floor in tacit understanding.
One late night, the boy was locked out because he forgot his key. She kindly let him in. In the following days, the boy was distant and mysterious. His coming and going always carried a hint of enigma, leaving her at a loss as to how to deal with this inscrutable emotion.
Can she solve the mystery? Where will the relationship between the two go?