EMOTIONAL SYMPATHY. Like, I've apped a lot of characters I've had FUN with who don't have the emotional depth to really get hooked onto people or situations in a genuine way. If I can genuinely hurt for a character, I'll keep them for a good long time barring outside influences or other problems. Even if the character themselves isn't emotional, I need to have feelings other than just pure "LOLOL" for them.

What traits do your characters share.