In line with the JRPG genre that inspiration has been drawn from, Fabula Ultima’s tones are heroic and optimistic, despite the occasional presence of tragic or darker scenes — especially when Villains are involved. The general expectation is that scenes will not be particularly gritty or morbidly described, even when death is involved — but since you never know what might hurt the sensibility of the people playing, here is a list of tools and “good practices”.
When you draw a line, you are saying that you don't want this element in the game. It won't happen, it didn't happen, and your shared story will never talk about that.
When you veil, you are saying that while the element is present, you don't want it to be expressly depicted or brought into the spotlight. It's still a part of your world and will influence your character's actions, but it will take place "behind the scenes".
These tools are especially useful if you’re playing with people you’ve never met before, but keep them in mind even when you’re with old-time friends. Every single person has something that makes them uncomfortable, sometimes to an unbearable degree — overly detailed descriptions of violence, portrayals of unhealthy relationships, or even something you believe is commonplace but somehow left a scar on them.
When playing the game, one of your duties is to create a safe environment — don’t insist on asking why something made someone uncomfortable: instead, ask them how they’d prefer this type of scene or situation to be handled from now on.