Kimihiko spends the entire show mourning someone already gone, solving mysteries that only deepen the wound instead of closing it. The genius move is making the murder of your partner the premise, not the climax, so every answer about her death costs him something new. A show about a man trying to move on that refuses to let him, because the case won't stop following him home.
Kimihiko's ordinary life shatters when he meets Siesta, a mysterious detective with silver hair and a talent for solving impossible cases. What begins as a chance encounter on a hijacked plane becomes the start of years spent chasing criminals across continents, unraveling conspiracies, and trusting someone completely. Then Siesta vanishes from his life, leaving behind only unanswered questions and a void he can't fill. Years pass. Kimihiko tries to move forward until a new investigation lands on his doorstep, one that pulls at old threads connecting to assassins, hidden organizations, and the partner he thought he'd lost forever. As buried secrets surface, he realizes that Siesta's death may not have been what it seemed. The case forces him to confront whether some connections can truly be severed, and whether the past can ever stay dead. Part romance, part mystery, part supernatural puzzle, the series weaves humor and heartbreak as Kimihiko uncovers the truth behind the woman who changed everything.