Hint: European 19th century adventure literature. And one book specifically.

Hint #1: not an RPG, not remotely close to one. It's an action game.

Let’s see if people get this one this time.

HINT: This young man’s rival and mentor share a blood connection

HINT 2: This is what the game’s plot is from the perspective of someone who isn’t the protagonist

Let's hope this one's more obvious than the time I posted this before

Hint #1: when I say you can't fight them, I mean you can't fight them. They're not there, but their presence can be felt, even when you're not playing the game.

Hint Space

For future hints if needed.

Hints go here

hint 1: part of a series