haruna kai ni (kancolle)
haruna_(kancolle)'s second remodel.
Unique to her Kai Ni, Haruna has AA guns attached to her boots and cannons painted with dazzle camouflage stripes, a reference to her real-life black-white striped camouflage when she was moored in Kure after the battle of Leyte Gulf.
After her second remodel was revealed, artists began to draw Haruna with panties striped like her dazzle camouflage. Interestingly enough, her canon panties does actually feature vertical black-white stripes.
This tag implicates haruna_(kancolle) (learn more).