Kantai Collection's personification of the Japanese submarine I-503, the ex-Italian Comandante Cappellini.
Her Japanese uniform changes to a white one-piece swimsuit while her hair bow holding her twintails changes color to red. She also discards her thigh boots for a barefoot appearance.
This tag implicates comandante_cappellini_(kancolle) (learn more).
The following tags implicate this tag: i-503_(valentine)_(kancolle) (learn more).