Everyone has their own secrets. Secrets can help people succeed and even fall in love; but secrets can also destroy people. Secrets can sometimes make us happy, worried, or even blind us to reality. This drama is about secrets. It is an exploration into the trials and tribulations of people who live with secrets. These secrets drive the four characters desire to find love and exact revenge.

Jan Di is an average girl whose family owns a dry-cleaning shop that is located near the luxurious and well-known Shin Hwa College. Jan Di meets the four richest and spoiled boys when she delivers laundry to the school one day. The boys are known as the F4 and cause trouble to those who speak out against them.

A Japanese Maritime Self-Defense Force (JMSDF) submarine sank in a maritime accident near Japan. Japan was shocked by the news that the survival of all 76 crew members, including the captain, Second Lieutenant Shiro Kaieda, was hopeless. However, the crew actually survived. They were selected as crew members for a nuclear submarine built in top secret by Japan and the United States.

(Source: Japanese = silent-service.jp)

Adapted from the manga series "The Silent Service" (沈黙の艦隊) by Kawaguchi Kaiji (川口開治).

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