A boy named Ji Hyun falls in love with a senior who doesn't see him as not more than a junior .He is hurting every day with this unrequited feeling and seeing his sister with his beloved senior. He hides his feeling deep inside. He also doesn't have a good relation with his father who only thinks of him as a useless brat. In this despair world he only had his best friend Sun Ho but one day his eyes were glittering when he saw his senior. It was love at first sight and slowly his love for his senior grew even deeper and deeper. How will this love proceed ?