High School Fleet Movie (2020) Timeline Explained – Every Event in Order

Susan was coerced by the pirates, who threatened to withhold help in finding her father in Japan. She was forced to infiltrate the massive float scheduled for scrapping to prevent the Blue Mermaids from leaving the harbor, essentially acting as an inside agent to facilitate the pirates' operation.

Foreshadowing: Susan's infiltration of the float during Day 2 foreshadows her later revelation about being coerced.

• susan reyes
• pirates
• coercion
• father
• blue mermaids

Akeno used Harekaze II's relatively small size to slip through a narrow breach that was created when the high school fleet bombarded four Yamato-class flagships. This allowed her to enter the fortress interior while the combined fleet engaged the pirates externally.

Foreshadowing: The earlier mention of Harekaze II's size becomes critical during the infiltration scene.

• akeno misaki
• harekaze ii
• infiltration
• fortress
• breach
• yamato-class

Mashiro wants to remain with the crew to gain more practical experience while continuing her training to become a captain. The lessons she learned and the bonds formed during the pirate crisis showed her that she still has more to learn before achieving her goal.

Foreshadowing: The earlier tension about Mashiro being considered for captaincy sets up her decision to pursue more experience.

• mashiro munetani
• captain
• training
• crew
• experience

The pirates hijacked a floating water purification plant and a sea fortress with the intention of converting them into a mobile sea base. This would give them a operational headquarters and significantly strengthen their control over the sea lanes.

Foreshadowing: The initial report of the hijacking establishes the scale of the threat that drives the entire mission.

• pirates
• floating plant
• sea fortress
• mobile base
• hijacking

Instructor Kaoru Furushou presented a recommendation from the crew of Hiei to promote Mashiro to captain. This created tension because Akeno had been taking the lead throughout the tournament, and the promotion question forced both characters to confront expectations, responsibilities, and their competing ambitions.

Foreshadowing: The captaincy discussion occurs early in the story during the welcome festival.

• mashiro
• akeno
• captain
• kaoru furushou
• promotion
• tension

The Blue Mermaids joined forces with the all-male White Dolphins in a combined assault on the sea fortress. While both forces engaged the fortress externally with naval fire, Akeno led an infiltration team inside using the breach created by the Yamato-class bombardment. Susan's intimate knowledge of the fortress interior proved crucial for the successful disablement.

Foreshadowing: The earlier alliance between the two fleets sets up the coordinated attack strategy.

• white dolphins
• blue mermaids
• combined assault
• fortress
• alliance

Susan had intimate knowledge of the fortress interior from her earlier infiltration work for the pirates. This insider information allowed Harekaze II to navigate the fortress structure effectively and disable it from within, turning the tide of the battle.

Foreshadowing: Susan's earlier infiltration of the float foreshadows her usefulness inside the fortress.

• susan reyes
• fortress interior
• knowledge
• disable
• insider

Benten and Admiral Graf Spee successfully executed a rescue operation aboard the floating water purification plant, freeing the hostages and capturing the pirates. This action disrupted the pirates' operation and was part of the coordinated response involving multiple high school fleets.

Foreshadowing: The initial pirate hijacking establishes the hostage situation that drives the rescue mission.

• hostages
• floating plant
• benten
• graf spee
• rescue
• pirates