When news came around that their relationship was indeed romantic (both Korra and Asami are bisexual women), the internet lost it.
LGBT fans of Legend of Korrahad been picking up hints and chemistry between Korra and her best friend Asami through the entirety of the series, which concluded in 2014. It is very debatable whether or not this American animated series could be considered an anime by definition, but this pairing is just too good to leave out.