Átila never thought the day he went to meet his girlfriend's parents would be the day his life changed direction. But that was before a boy climbed out of the pool, shook the water from his hair, and extended his hand with a smile that was impossible to look away from. Guilherme was Amanda's younger brother. He was fifteen, with a telescope by his bedroom window and a way of seeing the world that Átila had never encountered in anyone before. Within weeks, they were inseparable. Within months, Átila understood that what he felt for him had no comfortable name. He tried to ignore it. To reason his way out of it. To call it admiration, brotherhood, anything that didn't require him to look too closely at what it actually was. But the heart doesn't negotiate — and Gui was everywhere: in his thoughts, in his silences, in the way his eyes searched for that one presence without ever being asked to. The problem was as simple as it was devastating. Gui was his girlfriend's brother. On a holiday trip to her family's country estate, far from the city and the unspoken rules that had kept everything in its place, something between them begins to give way — slowly at first, then all at once. What surfaces is not only desire. It is recognition. The quiet, unsettling certainty that this person — somehow, inexplicably — has always been the most important one. But Amanda stands between them. And some choices, once made, cannot be unmade. The Wrong Brother is a story about love arriving through the wrong door — at the wrong time, in the wrong person — and refusing, stubbornly, to leave. About what we do when what we want and what we're supposed to want are two entirely different things. And about two young men who discovered, in the most complicated way possible, that sometimes the right person wears the face of someone you were never meant to love.