>>108688394they're reffering to the routes in the ATLA porn game Four Elements Trainer. There are 4 chapters centred around a different girl, and in each you can choose whether to go down the 'love' route, ending in a romance, or the 'slave' route, where you abuse the girl into being a sex slave. The 4 girls are in order:
>Katara>Azula>Toph>Korraso what OP means is that he prefers doing the love route for Azula, and the slave route for all the others.
