Her appearance is a whirlwind of thrills and arousal! Dongha is a repeat CSAT test-taker who holes up at home, idling his days away. His parents, frustrated by his laziness, force him to start private lessons to prepare for the CSAT. However, Dongha learns that the new tutor his parents hired is none other than his childhood first love. Dongha can’t help but get distracted by his first love’s beauty and breasts… which have changed a lot since he was younger…