An action-packed adventure based on the popular video game, Honkai Impact 3rd: Second Eruption!

When a research lab in Siberia known as the Tower of Babylon goes mysteriously dark, members of both Schicksal and Anti-Entropy converge on the site to investigate the cause. While their suspicions of a Honkai presence are correct, they discover an even greater threat: Sirin, the 2nd Herrscher, is on a quest of vengeance that threatens the safety of the whole world. Unable to face Sirin alone, Schicksal and Anti-Entropy set aside their differences to forge an uneasy alliance against her — but even their joined forces may prove to not be enough.

An action-packed adventure based on the popular video game, Honkai Impact 3rd: Second Eruption!

With the clock on Sirin's ultimatum ticking down, Welt and Siegfried join forces to take the battle directly to her — on the Moon. With the fate of the entire world in their hands, the unlikely pair will have to use every ounce of their wit and ingenuity if they hope to match Sirin's ever-increasing power.  It's humanity's fiercest warriors against a terrifying inhuman threat!

Will heart and light prevail over a vast and vengeful darkness?  There's only one way to find out.