Guillermo is a member of the Order of Cross Haven. Despite being a guild adventurer, he is part of a different unit that works solely in Cross Haven (acting as the city's main crime-handlers). Due to it only being his party and two others, it means that his hands is always full, and any weird behavior is enough to add you onto his list of suspects.

He's a man who focuses on work, and refuses to be social or lean. After all, he's survived half of the apocalypse. He knows too well that any showcase of weakness could cost him his life.