Outside or inside the cracks, my love persists

For years, Bruno has been living in the walls of the house, away from his family, hidden so as not to harm anyone, but at least he has Hernando. He is not alone as long as Hernando stays by his side.It's a shame when the time comes to go out for more supplies, Hernando says he'll be back, he always comes back. Bruno is left alone in the walls, again, but then things happen and he is forced to deal with his curious and persistent niece; there are confessions, and plans are made, Bruno makes another prediction and things take a turn for the worse.It's all his fault, but then it's not. This time, Bruno confronts the situation, only to discover that he was able to fix things long before.Hernando then returns to find that Bruno has finally left the walls.But, who is Hernando?Or, Hernando exists.