The story follows Ozaki Karin, who, on her 17th birthday, discovers her first love, Hasebe Soma, dead by apparent suicide. Ten years later, while mourning on her birthday, she discovers that burning the mysterious photos he left behind allows her to travel back in time to the day they were taken. Karin uses these limited opportunities to prevent Soma’s death, only to realize that altering the past carries unforeseen and often dangerous consequences. Key Highlights
: Unlike many tragic time-travel stories, the series eventually leads to a resolute ending where the protagonists find a way to overcome the cycle of tragedy. Why It’s Worth Watching Blue Birthday (2023)
The 2023 Japanese remake of is a poignant supernatural romance that explores the heavy themes of grief, regret, and the desperate desire to change the past. Based on the original South Korean web series, this version stars Tsurubo Shion (JO1) and Matsui Airi , bringing a fresh emotional depth to the "time-slip" mystery. Plot Summary The story follows Ozaki Karin, who, on her
: The chemistry between the leads captures the bittersweet nature of "what ifs," making Karin's desperate attempts to save Soma feel deeply personal. Key Highlights : Unlike many tragic time-travel stories,