The original cast from the previous installment, including Ekin Cheng, Charlene Choi, Gillian Chung, and Nicholas Tse, reunite for this film with the addition of Michelle Yeoh and Japanese scenery, aiming to capture the feelings of love among a new generation of young people in Hong Kong. Unfortunately, director Wilson Yip's handling in this film focuses heavily on a superficial sense of carefree abandon, resulting in unrealistic and false character portrayals that lose the innocence of the protagonists' student days depicted in the first part.
Ekin Cheng plays a character who has been in a long-term relationship with the one played by Charlene Choi. As their strong feelings gradually fade, they plan a trip to Japan hoping it will reignite their passion. However, while in Japan, they argue over trivial matters, and one abruptly leaves the other stranded in a foreign land. There, the stranded individual encounters Michelle Yeoh’s character, a short-term course attendee from Hong Kong, and is drawn to her warm and outgoing personality. Just as things become intimate, circumstances force a return to Hong Kong. After reconciling, the character truthfully recounts the events in Japan, which are not accepted, leading to a breakup. Amidst the sadness, a chance encounter in Hong Kong with someone who is compliant and agreeable rekindles some feelings, yet memories linger.
On another front, Siwen, played by Paul Tam, has secretly loved his high school classmate Gillian Chung for a long time. After being dumped by her long-term boyfriend, Siwen has consistently been by her side, eventually winning her affection.