Exciting Collaboration: Captain Kosaku Shima Joins the Battle in "Sōen no Kantai"

Captain Kosaku Shima Takes Command in "Sōen no Kantai"

From December 10, 2025, fans of maritime warfare games will witness the thrilling collaboration event titled "Captain Kosaku Shima" in the acclaimed game "Sōen no Kantai," developed by Liber Entertainment. This crossover with the beloved manga series "Shachō Kosaku Shima" by Kenshi Hirokane promises to deliver an engaging blend of strategic gameplay and rich storytelling.

The event centers around a unique narrative where the character Kosaku Shima, originally a successful businessman, steps into the role of a naval captain, guiding the Sōen fleet through tumultuous battles against the shadow fleet. Within the game's immersive world, players can explore Shima's strategic prowess as he navigates the complexities of wartime scenarios, all while dealing with the intricate ambitions of various nations.

One of the highlights of this collaboration is the introduction of special naval vessels, including the battleship "Yamato (Kosaku Shima)". This iconic ship, alongside new fleet members like "Shirakami (Kosaku Shima)"—a destroyer, presents players with exciting new gameplay options and visuals that pay homage to the manga.

In addition to the new story and ships, players who log in during the collaboration period will receive exclusive rewards. Specifically, all participants will be entitled to redeem a ★5 destroyer, "Shirakami (Kosaku Shima)", just for logging in. Furthermore, a login bonus system will reward players with additional items: on the third day, they can claim the ★5 Captain Kosaku Shima, while the seventh day offers the ★5 version of Shachō Kosaku Shima. This encourages engagement and adds a layer of excitement for fans eager to collect these special characters.

The collaboration runs from December 10 at 17:00 until December 24 at 11:59. This event is set to be an exciting opportunity for both fans of the game and the manga alike, as it intertwines elements of both worlds, creating a unique gaming experience that highlights strategic naval battles with beloved characters.

Don't miss this chance to join Captain Kosaku Shima and lead the fleet to victory!

Stay tuned for more updates as the event approaches and prepare to immerse yourself in this extraordinary crossover.