Talk:Recent Updates/@comment-76.178.212.22-20140318150930/@comment-101.118.4.193-20140318155730

From TVtropes: 
 * Kirishima towards Haruna. This time it's due to the production rivalry/competition between Kawasaki Shipyards in Kobe (which built Haruna) and Mitsubishi Shipyards in Nagasaki (which built Kirishima), with the ships in question being built around the same time. However, Kirishima's production got delayed for a day note On the contrary, Haruna's engine was actually found faulty during her engine test. As a result the construction ended up taking an extra 6 days to complete, and the person who was responsible in the production of the engine committed suicide in order to apologize for his mistakes., which caused Kirishima to look at her as a rival, despite them being both completed on the same day, effectively making them twins. Do note that the whole rivalry is actually one sided as Haruna does not actually think much of it.

Not sure where they got the info from but it's pretty close since the shipyard do match the battleships from wikipedia.