Also known as: 61cm四連装魚雷
"A quadruple tube of heavy-hitting 61cm torpedo. Comes with reloading device to reload torpedoes in quick succession, thus providing more opportunities for pursuance. Fitted on fleet destroyers of post-Shiratsuyu class, as well on modernised heavy cruisers." [1]
The tag applies to the Kantai Collection fairy.
The fairy who maintains this equipment has Blue Hair worn in Short Twintails secured with Red Ribbons, and wears a School Swimsuit and Diving Mask. She occasionally wields a Trident.