Vice will be unlcoked automatically after removing Rose in the Mental World
Just like Lewdness Vice Options have a Vice cap wich will make it that you can't increase Vice past a certain point with certain options
Also just like lewdness Vice actions will also increase some secondary stats that you can see in the Compenidum Moral Page however all of them are completly pointless exept for Infamy as you'll need 5 for at least 1 Quest
Infamy is gained by performing a Vice-action with at least one witness.
You can get Infamy by:
0 to 10 Vice
In the Congregation in Nephlune (first building to the left) Invest 1000G with the blonde Merchant to get 2000G in 10 days, this is the only repeatable Vice Action. Increases Infamy
If you rescued one of the injured merchants in the Festival of Greed you can talk to him in the Congregation In Trademond to get 1000G. Increases Infamy
Complete the last step of the Save the Crops Quest after unlocking Vice. Increases Infamy
After you start the Incubation of the Selflessness orb in the Mental World you’ll learn the [Theft 1 ability] which allows you to steal a basket of 10 Apples from Jacob’s farm south of Trademond, 2 crates of 10 Apples from the Refugee Camp Foodshed, 2 Crates of 10 Apples in Riverflow and 6 Ropes in the ground from the Mine north of Trademond
11 to 15 Vice
After you fully corrupt the Selfishness Orb wait a day and you have 10 Vice, you’ll learn the [Theft 2 ability]
Using Shadowcloak you can steal a chest in the room on the left in the Congregation in Trademond
Steal a chest in the second floor of Hermann’s Mansion in Trademond
Steal a chest in the second Floor of Nephlune’s Lord Mansion
In the 3rd building down in Verdeaux talk to the blue haired guy at the bottom and sell some items for him
Option during the Rampaging Golems Quest. Increases Infamy
Option during the Poisoned Elixirs and Something Fishy Quests. Increases Infamy
You'll automatcly will be given a choice to steal the Mana Catalyst in the What’s with Birds and Stealing Quest. Increases Infamy
After completing the previous Quest after 1 day talk to Desmond in the Guild to Start the A Just Reward Quest
16 to 21 Vice
After obtaining 5 Infamy enter the Guild in Trademond to start the Homewrecking Quest and pick the 2nd option
After completing the Special Study in Verdeaux talk to Roland on 9 different days while having less than 40 Willpower during the scenes with the options
22 to 24 Vice
Absorb the Red Flames during the Reverse Summoning Ritual