A birthday party setup becomes the most beautiful funeral for a character who never stood a chance. Totsuka's death isn't shocking, it's inevitable, and the film knows it, which makes watching him genuinely happy in his final hours the cruelest thing the series has ever done. The animation reaches a level the original show never touched, turning each mundane moment of preparation into something you'll replay to punish yourself.
December arrives with birthday plans. The rowdy members of HOMRA want to surprise Anna Kushina with a celebration worthy of their princess, and Tatara Totsuka takes charge of creating something she'll never forget: a video message compiled from the whole clan. It's a chance for the gentle-hearted swordsman to channel his role as the group's emotional anchor into something meaningful, something that might soften even the volatile Red King's edges. But sentiment gives way to danger. A new threat emerges from the shadows: a colorless entity with ambitions far darker than a birthday party. This king moves with calculated purpose, hunting the other monarchs with methods designed to exploit their weaknesses and turn their own power against them. What begins as a heartfelt gesture becomes overshadowed by an approaching storm that could tear apart everything HOMRA has built. The story weaves intimate character moments against mounting supernatural peril, asking whether bonds forged in a clan can survive when external forces refuse to let anyone simply celebrate peace.