Shanghai Summer is an adventure title that explores deep themes of regret and redemption through the lens of the protagonist, Tu Baichuan. The story is set against the backdrop of Shanghai 2003, a time marked by rapid change and uncertainty for the city's youth, with unexpected intrigue. The storyline begins when the hero receives an unexpected invitation from his ex-girlfriend Qiuyu, who has been absent for a long time.

This invitation becomes the catalyst for a series of “anomalies” in Baichuan's life as he witnesses his memories materialize with eerie authenticity. Driven by the desire to unravel the truth behind these anomalies, the character discovers the coincidence of his past hopes and regrets. At its core, Shanghai Summer offers users a rich and exciting narrative, permeated with heavy themes of the main character's journey.

The title allows for multiple endings depending on the user's choice, which adds an element of unpredictability and replayability to the game. The narrative unfolds smoothly, weaving a tapestry of emotions and dilemmas as the hero navigates the complexities of his past and present. The title features a vibrant cast of characters, each struggling with their own problems and dreams. They contribute to the overall depth of the story, adding layers to the exploration of regret and redemption.