In the center of the sea of oblivion, there floats an island swallowing memories. People exile their unbearable painful memories here in exchange for inner peace. Silence, a man known as the "Memory Submarine", makes a living by salvaging these abandoned memories. He drives the lonely boat "Xunying" and travels through the turbid sea of memory, retrieving for clients the past they regretted abandoning. However, what he wanted to retrieve most was the blank memory about his sister. A dangerous commission dragged him into a whirlpool of lies and truth, forcing him to face the cruelest secret buried by his own hands.
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