Umizaru (Japanese: 海猿, lit.'Sea Monkeys') is a Japanese manga series written and illustrated by Shūhō Satō. It was serialized by Shogakukan in Weekly Young Sunday from 1998 to 2001. Yōichi Komori is credited with the original idea for the series, and he also did the research to make the series more authentic.
The series focuses on Daisuke Senzaki, an officer in the Japan Coast Guard, and tells the stories of shipwreck rescues and other incidents where the coast guard plays a role. The plotlines in the series were drawn from incidents and accidents which actually happened while the manga was being written (similar to the "ripped from the headlines" tagline used by various Law & Order series).
A story of friendship, love and the brutal training of 14 Japan Coast Guard officers becoming rescuer divers. The rescuer divers, on the front line in rescue activities in heavy seas and always one step away from death, are a group of specialists in a profession that only 1% of all Coast Guard officers qualify for. In order to receive that qualification they have to undergo 50 days of grueling training in rescue activities. The young Coast Guard officers, including Daisuke Senzaki, take on the challenge of that hellish training. The story concentrates on the lives of the divers after having passed their examination.
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