Hayasui is a fictional character from the anime series Kantai Collection, also known as KanColle. She is portrayed as a friendly and hardworking fleet oiler, a support ship that provides fuel and supplies to other ships in the fleet. Despite her auxiliary role, Hayasui is depicted with a cheerful and optimistic personality, always eager to assist her fellow fleet girls. Her inclusion in the series highlights the importance of logistics and support in naval operations, making her a valuable and beloved character among the fans of KanColle.