Hello, Mr. Blue

"She who is afraid of water, what kind of love song will she compose when she meets him who is wandering in the sea?" One day, Areum received a phone call saying that she had a younger brother who was adopted to France? That man is also a world-renowned diving expert! What exactly is going on? This is a story about a woman who is afraid of the water and a man that prefers being underwater by the same artist who drew "Honey Honey Wedding".