Kōsuke Kōsaka is a fictional character from the anime and manga series Kantai Collection. He is depicted as a young man who serves as a commander in the game, which features anthropomorphized naval warships. Kōsuke is known for his strategic thinking and leadership skills, guiding his fleet in battles against enemy forces. In the series, Kōsuke interacts with various ship girls, each representing different historical naval vessels. His character is often portrayed as dedicated and caring, forming strong bonds with the ship girls under his command. This dynamic adds depth to the storyline and enhances the overall experience of Kantai Collection.