Well, I have tried the sequel now.
It's physically possible to complete quests.
There is absolutely no fucking benefit to doing so.
Both games are pointless. Like, the dev obviously knows how to program... but has zero concept of good game design.
If you really want to do the first quest then what you can do before even leaving town is talk to the urchin (will always be girl) in the redlight district give her food and have her come home with you then you can spend 50 gold to buy a beauty mixture use it on emily to get her beauty to the required stat then give her to the mage (you may need to interact with her in the mansion to raise obedience) this will end her sidequest line but that wont matter if you only care about males, same with the rest of the sidequests since they are all girls in them.
well you said u didnt care for female slaves the sidequests reward you with female slaves and sex scenes with those slaves thus it wouldn't matter to you since you want a game with all male, as a sidenote the side quests dont give money or exp, the main quests also dont give xp but do give u some money but not much compared to what you can get using other methods. Quests in this game are more story based and the sidequests are not required to complete the main story.
its an indie adult fantasy game, the game itself is a mix of visual novel, people management, rpgs and adventure games, and as with many games you get levels by gaining exp by defeating enemies. Examples of these games that handle leveling this way are Rpgs like fire emblem and dragon quest to name a few.
I have not played any Fire Emblem or Dragon Quest games, but it doesn't appear that those games even have quests, so... of course the quests don't give experience because they don't exist. I guess maybe Sandbox Mode (which made no sense at all to me initially, because I figured the game was already sandbox, being purportedly a management game) is more like those non-quest-based games. If that's the case though, it's really poorly tagged, and the Story Mode is incredibly poorly conceived. Should just be under RPG, not Management, and shouldn't even have a Story Mode.