Young people from different backgrounds are studying martial arts at the Assassin Academy. Han Xiao Chu, the top school student, was the first to go out on outside mission. She was accompanied by the student Long Bi Xie, the last placed student. During the mission, something happens and Xiao Chu awakens back at the academy with all students missing the memory of Long Bi Xie and him also missing.

Shan Jun Hao, the CEO to a large hotel chain, is the stereotypical heir – spoiled, coldhearted, and ruthless. He meets Ye Tian Yu, a schemer and somewhat of a gold-digger and after a series of events, Tian Yu "accidentally" runs Jun Hao over. Turns out, Jun Hao has lost all of his memories and became a kindhearted and loving person. Just when love is in the air, Jun Hao's family came looking for him and he has a fiancée who loves and misses him. Some more "accidents" occurred, and Jun Hao lost all of his memories of Tian Yu and went back to being a spoiled heir. However, Tian Yu fights for their love even though Jun Hao thinks of her as a lying schemer. Will Jun Hao remember his love for Tian Yu? Who will Jun Hao choose? And who is the person causing all the "accidents"?

February 2006, Shikina Island. Dr. Koto is riding his bicycle to visit his patients. He is told by one of them that Takehiro-one of the boys who was brought up on this island-has passed the entrance exam for a junior high school in Tokyo. The island is filled with excitement at the wonderful news. Meanwhile, the island's only nurse, Ayaka, is in Tokyo. She said that she is going to attend a rehabilitation seminar. But actually, she has gone to Tokyo for a medical examination... -

Wong meets brothers San and Sui in the slave camp in Indonesia. He is concerned with fighting for better benefits for Chinese laborers and is split between his wife back home and a new flame, while San falls in love with mail-order bride. Sui, on the other hand, is fed up with the impoverished life and will do anything to escape his lot.

In 1941 one of the Chinese troops, led by Pan Tiande, was defeated by the Japanese, and arrived in the Soviet Union by contacting the Soviet army. Officer Natasha was then responsible for their training. During the following military actions Pang's patriotism and bravery deeply moved Natasha, and they fell in love together. After the founding of New China Pang decided to serve the country as a mechanic worker, and Natasha became a soviet mechanic specialist after college. When they were preparing for the wedding, Natasha was ordered to return to the USSR. The departure was very dramatic. Later, Natasha wrote to Pang that she had settled down on the border, trying to be as close as possible, waiting for him to come one day.

It tells the friendship of a boy and a girl of 17 years old with their own secrets

Adapted from a novel by Liu Liu (六六) with the same title.