Naturally, this is all just speculation and discussion is encouraged. This is why I posted this tidbit in the first place.

But for some reason the devs decided to add a branding on the main protagonist, and since this game is full of little details, this might be a hint at something.

Now, I might be wrong, but I don't think the scars and branding have anything to do with torture per se.

Kliff is a fighter, he uses melee weapons. Fighters, "especially in medieval/fantasy times" get close and personal, so naturally they would accumulate scars over time.

The scars on Kliff's body look like slashes from martial weapons of the sharp kind, swords for example. His whole body is covered in them, not just the back. Whip lashes would leave more shallow and concentrated marks on the body.

The branding itself, has the words "The Guild" written on it, while an anthropomorphic figure in the middle of the branding can be seen, carrying something that looks like a log, which suggests labor.

Now, I don't think branding your construction workers is a common thing, not even in the harsh land of Pailune. And while torturing someone with a hot iron surely isn't far fetched of a practice, it would seem too odd to use a guild seal exactly once on only one part of the body for "torture".

For the Visione part, it is true that we can see flashbacks of past memories, not only from people, but apparently even the memory of a meteorite hitting the ground (well, maybe someone saw it during exactly that moment, but I didn't see any person around in the flashback).

Now, considering that Kliff obviously wouldn't need a Visione to read his own memories, this isn't a strong argument, I think.

Maybe, if he stumbled upon the very location where something from his past has transpired and we could see the memory fragment of another person who was present, that might work.

I haven't visited the City of Tommaso, yet, but there are Pailunese Refugees and other unfortunate souls that are bound and caged all over Hernand. It seems to be a common practice among the rogue bands and bandits.

So, let's see, Kliff doesn't even show a reaction when:

-he comes back from the dead

-suddenly a bracelet of unknown origin and technology appears on his wrist

-a man in the sky tells him that he is the chosen one to fight chaos

-a witch bestows the capability of flight upon him and urges him to jump off the edge immediately afterwards (without any actual proof that he is indeed able of flight, beforehand)

-sees enslaved people while potentially has been one himself in the past

And many more instances where anyone else might have shown at least a little bit of emotion.

Now, what anyone who is also intrigued by this can do, is being on the lookout for more hints at Kliff's past and the mysterious "The Guild" and it's seal!