The Azur Lane base was hit hard when the Sakura Empire suddenly struck. As the Royal Navy and Eagle Union forces scramble to finish repairs, the Red Axis prepare another strike, this time against forces in the open seas.

Sheffield and Edinburgh take shelter on a small island to evade the Red Axis fleet pursuing them while awaiting reinforcements. A major confrontation seems inevitable, but members of both sides of the fight have doubts and concerns.

The rescue mission is a success, allowing Azur Lane to learn about Akagi's Black Cube. Both alliances regroup at their respective bases to plan their next moves, while getting some much deserved rest.

Kaga launches an attack against her own camp to reveal the Orochi and joins forces with the Sirens. They launch a weapon of mass destruction, forcing the Azur Lane to react. The Red Axis fleet regroups to pursue the Orochi.