Read manga: Kantai Collection -Kancolle- Nano Desu!

manga
Summary:

Inazuma and Ikazuchi, the Akatsuki-class Destroyer Kanmusume fighting with the Abyssals as their duty in the Naval School, had a secret they couldn't tell to other Kanmusume"When we fight, we want to win, but we want to save their lives...is that weird?"The kindhearted Kanmusume will do their best at their duty today as well.