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In the world of Astra, 92% of humans are born with a Pulse—a supernatural ability tied to their heartbeat. When a Pulse activates, the user’s heart rhythm changes, unlocking unique powers. The remaining 8% are called Nulls—people born without any Pulse. Nulls are treated as weak, often ignored, and banned from hero academies. Heroes are trained at elite schools to protect society from criminals called Breakers, who abuse their Pulses

This series is rated Mature. Please review the Content Ratings page for more information.