Webtoon writer Min Woo suffers from partial memory loss, but starts to write a new webtoon titled December 8 when he finds a memo on his desk calendar. Though webtoons are becoming more popular and his new webtoon is an instant hit, Min Woo start to suffer from severe headaches due to all pressure from work. Next to that he strives to recover a long lost memory from when he was 18 years old to find his first love Mimi.