Xia Tian, Jia Jiang, Fang Wei, and Bulu grew up on Westside Street together and currently study at Ying Ye School. It's one month away from graduation.

Xia Tian's dad is a police officer on Westside Street and is retiring. But on the day of his retirement, the kids had a fight with the Dinosaur gang at school and were almost expelled. When Officer Xia went to settle the conflict, his gun was misplaced by the principal. After a discussion, it was decided that the students would remain in the school, but they must find the gun within the one month before graduation to let Officer Xia retire peacefully and happily.

While searching for the missing gun, they discovered that an ex-convict Grey Wolf who escaped from prison may be connected with the missing gun. And more surprisingly, Grey Wolf is has been in close contact with the students at Ying Ye.

Hirabayashi Takuto lives with his two friends Hano Kyohei and Okayama Hajime at a share house. They have been friends since high school. Takuto Hirabayashi now works at a company, Kyohei Hano works at a trading company and Hajime works for an apparel brand.

One day, Takuto comes home from work and finds a baby sleeping in the room. Kyohei and Hajime also come home. They read a letter on the desk that says “the baby is yours.” Who is the baby’s father? All three are not very responsible and guess that one of the other two guys is the father. At that time, they notice the baby has a fever.

The drama tells the story of Yamaguchi Yoshiko, a Japanese woman born and raised in China during the Japanese occupation of Manchuria. She debuts as the Chinese singer and actress Li Xianglan (Ri Kouran in Japanese), in the hopes that her efforts will work towards the benefit of both Japan and China. Hiding her true nationality, however, she slowly discovers herself becoming a puppet of the Japanese military's propaganda efforts in Manchuria, starring in "national policy" films that humiliate the Chinese people. But billed as the "star of Greater East Asia," her popularity soars across borders to Japan, where she holds a concert that draws thousands to the Nihon Gekijou Theatre and leads to a riot that injures several people. Based on her autobiography, this is the story of her personal struggle amidst military strife between her two homelands.

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Tsung Ka Yuen is an excellent police officer whose team always seems to get assigned to the most interesting cases in all of HK. He works well with his police colleagues and is looked upon by everyone as the big brother. Ka Yuen is also very close to his dad, brother, and stepmom. Ka Yuen wife died from cancer and he hasn't dated anyone since. Later, Ka Yuen starts to like Pauline but before anything happens with her, he dates Siu Tong Choy, one of his colleagues. Because the crimes that Ka Yuen's team deals with are mostly murders, in comes the forensics unit! The intelligent and modern forensics examiner, Pauline Lip Bo Yin. Her beauty and brains can be a bit intimidating so she too has not had much luck at love. As with Ka Yuen, Pauline also has an interesting family history. Her father was a well-known bomb expert who died when she was quite young. Pauline has remained extremely close with her mother, sister, and niece.

Da Eun works part-time and Kim Byul is an idol in her 5th years since debut. These two girls who look alike decide to change each other’s lives just for 7 days. It tells the romantic encounters of these 2 girls

Upon returning from study abroad, her fiancé quickly ends their marriage, leaving her with a sick son to care for. She then meets architect Du Fan and the two fall in love. But then something happens and it tears them apart. They meet again years later and eventually end up as a couple.