Darkest Dungeon II

The level of affinity between characters is what determines the likelihood of a positive or negative relationship. But even with 0/20 affinity the unmodified chances are 90% and you need to get all 6 rolls to come up in your favor so there's a chance RNG lets you down. If you have quirks that give you a lower negative chance try to lock in something different giving you a chance to replace and get rid of it.

Do this in Act 1: Denial, which is the shortest at only 2 regions and does not require a trophy to access. On the last fight(cultists) you're going to leave one opponent alive(it can't be an altar since this will suicide). I also recommend it's not an evangelist as they apply bleed and these stacks can get significant on your front 2 while you wait for the meltdowns.

Then just keep mashing 'pass turn' and you've got an 80% chance of having a meltdown when stress hits 10. A meltdown also lowers your HP so having party members that can taunt/heal/guard is helpful in having members survive long enough to tank all of your relationships. Do this until every single relationship is 0/20 and hope the odds are in your favor.

If you get all 6 negative relationships you just have to get through one fight. Take a look and fix your skills since your characters will have 3 locked-in skills that maybe don't help your team or perhaps your good skills now cause negative status effects.

Would recommend you pair this with your progress at as the party will have a tougher time defeating the boss.