Strive is basically a monster-girl slave harem power fantasy.
The biggest challenge for most players is the lack of gold at the start of the game to buy proper armor, weapons, and bandages for combat. The game gives you 250 gold in story mode but a bit less than 1000 gold is needed for equipment for both the player character and the starting slave, so players have created guides identifying the fastest ways to get that money so that the player can get to playing the rest of the game how they want.
The first guild quest exploit (which relies on default sex ratios) is buying a cheap(less than 100 gold) female slave from the slave guild to complete the quest which provides 250 gold as a reward. This provides enough money to buy the main character good weapon and armor, which can be used to free victims from bandits for rewards of gold and equipment. Without the exploit, the player can only afford good armor and the default weapon. Bandages are used to heal up after battle. When you get enough money to buy good equipment for the start slave, then you can use them to actually defeat enemies rather than relying on them running away. This isn't a required way to play, but it is the fastest way to get the game started.