Sogen Tanaka

Kaoru has a sickness that hindered her to go out when the sun is up. Despite this sickness, she fell in love with a boy named Koji. If she decides to pursue her love, it will mean risking her life.

Daisuke Senzaki has been selected to go through training to become a rescue diver within the Japan Coast Guard Special Rescue Team. At the side of the grueling training he finds love in the local girl Kanna.