An action-packed adventure based on the popular video game, Honkai Impact 3rd: Second Eruption! Following their climactic battle, Welt manages to fend off Sirin and force a stalemate, but at great cost to his own health. Meanwhile, Schicksal and Anti-Entropy aren't t he only ones regrouping for the conflict ahead. Sirin is led to the far side of the moon, where she comes face-to-face with an unimaginable power. Sirin is far from finished -- and she has a deadly ultimatum up her sleeve that will change everything.