Whose Is the Cuckoo's Egg?(2016)

Whose Is the Cuckoo's Egg? is a Japanese medical suspense drama adapted from Keigo Higashino's novel. The series explores the intersection of genetics, competitive winter sports, and family secrets when a revelation about parentage threatens to upend lives built on ambition and achievement. At its heart lies a moral reckoning: characters must navigate the tension between professional success and personal integrity, between what they've been told and what is true. The story examines what happiness really means when talent, family bonds, and hidden truths collide. Higashino's narrative weaves together the high-stakes world of athletic competition with intimate questions about identity and belonging, creating a gripping examination of how one secret can reshape everything.