Why Didn't I Tell You a Million Times?

As children, Yui Soma (Mao Inoue) and Naoki Torino (Takeru Satoh) were best friends who shared a close bond after living in the same foster family. Now adults, they reunite and fall deeply in love. However, a tragic twist of fate suddenly takes Naoki away before he can propose to Yui. Devastated by his disappearance, Yui begins searching for answers. While filing a missing person's report, she meets Yuzuru Uozumi (Kenichi Matsuyama), a homicide detective who can mysteriously see Naoki's ghost. With Naoki's spirit urging Yuzuru to communicate with Yui, the detective becomes entangled in her life and their shared quest to uncover the truth behind Naoki's death. Together, they must navigate a complex mystery that blends supernatural elements with deep emotional connections.