Jinryoku Senkan!? Shiokaze Sawakaze
Japanese title: 人力戦艦！？汐風澤風
Type: ONA
Source: Original
Episodes: 3
Status: Finished Airing
Aired: May 2, 2017 to Nov 10, 2018
Duration: 16 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Gaina
Producers: Gainax
Genres: Sci-Fi
Themes: Mecha, School

The series plays out in the Onahama district in Iwaki, in the Fukushima prefecture's coastal region. 

It follows the personifications of two WW2 japanese warships, Shiokaze and Sawakaze, who worked as breakwaters in Onahama Port. In this fictional story, the 2011 earthquake pierces a worm hole in the spacetime continuum, starting an invasion from another dimension.