He has a skill that summons the ghost of his ship and make her do suicide ramming to the enemies every 60 seconds.
...I'd read that. Kongou will freaked out when she see ghost shipgirl appearing on the battlefield.
But hey, every allies that get hit will be drunk in CoCo's rum which will give them bonus speed and % of the damage taken will be delayed(the delayed damage isn't lethal on top of that) lol