Karakuri Circus chronicles the journey of Masaru Saiga, a young boy who unexpectedly inherits a massive fortune, making him the target of dangerous enemies. As he is pursued by mysterious figures wielding deadly automatons, he is saved by Narumi Katō, a martial artist battling a strange illness, and Shirogane, a woman skilled in controlling powerful puppets. Together, they embark on an adventure filled with high-stakes battles, intricate conspiracies, and a long-buried mystery that ties their fates together.

Blending intense action with deep emotional storytelling, the series explores themes of destiny, sacrifice, and the power of human connection. With its unique mix of circus performances, mechanical puppets, and martial arts, *Karakuri Circus* delivers an unforgettable tale where every encounter reveals a new layer of its grand, centuries-spanning conflict.