Personally Thats How I Saw It - Tumblr Posts

I know there are some people who don't think Malleus and Silver have a sibling relationship. And that's fine because there was never any explicit statements in-game that says so. But from everything that happens in Book 7, I think that's pretty much what the writers and Yana intended: that they're brothers born from different parents but nourished by the same man. "The blood of the covenant is thicker than the water of the womb."

Some people might say that they don't act like brothers, but not all siblings treat each other like what's commonly accepted. Malleus was already grown when Silver came to their lives, so it would be very hard for them to joke around as if they're siblings with two years of age difference between them. This is anecdotal, but I myself am the youngest of siblings, with the older one 15 years ahead of me. I don't joke around with them because when I developed my brain enough to think properly, they were already well past the rambunctious age. Our relationship has always been built on respect and seniority.

And that's how Malleus and Silver's relationship is. Silver looks up to Malleus and wants to reciprocate everything he's done for him, and Malleus still thinks of Silver as a baby he needs to protect. Maybe this is not ideal, and maybe this isn't the healthiest, but for all their faults they care deeply for each other. So much that they get mad on behalf of each other, they get jealous of each other, they would go to extreme lengths for each other. Like what siblings do. They just don't know how to express it properly, because there's an unspoken wall between them: the simple fact that they didn't come from the same womb. And this is exactly what Book 7 intends to address.