For 1500 years, the Kagami and Yamata vampire clans bled over a lie.

Jin, 21, second son of Kagami, touches a buried relic and his blood awakens — it remembers ancestors he never lived.

His clan calls it a sickness. The rival Yamata want to use it.

Only Komi, the rival heir sent as a hostage, believes him. Together they must uncover the erased truth before their blood remembers how to kill each other again.