Namjoon feels out of place in his little village of Amnesia on Jeju Island. He is known throughout the village as "The Forgetful One" because for the life of him, he cannot remember his family or how he came to be on the island. He was told he was found washed up on one of Jeju Island's shores with no identification of any kind. Now, he is on a mission to recover the memories he has lost. Little does he know, a handsome stranger that crosses his path at Amnesia's most famous café, Gem, one fateful day may hold the key to his forgotten past.