Season 1 of Heart Attack premiered on October 1, 2024.

Explores a post-pandemic world where gene therapy has saved humanity from disease only to give birth to Variants- people with powers so unique, the government denies their human rights. The Variants, who are persecuted by the public, live isolated in a village and are constantly monitored by an organization called VCU (Variant Crime Unit). Kanichiro plays the role of Umin, a Variant who is also a spy for the VCU. Miura plays the role of Ema, an influencer member of the unit “L.”