Board Thread:Fleet's Prepared-ness/@comment-31199230-20170220223400/@comment-11700680-20170221183045

You can only get Maruyu from LSC, which is a BIG resource drain. 5 Maruyu Kai can be used to modernize a ship's luck. She is very useful in expeditions due to having the lowest resource cost in the game. She is the best tank for 3-2-A grinding thanks to her short repair time, so keeping multiple of her could be useful, but since she has basically no combat strength keeping any during events would be wasted space.