The term "opiumud045" could relate to a fan-made effort to translate or re-edit the manga for better accessibility or quality. The world of fan-made manga translations and edits can be vast and diverse, with enthusiasts often working to make series available to a wider audience or to improve upon official releases.
Chapter Two picks up where the first left off, plunging the protagonist into an even more treacherous landscape. The story begins with our protagonist navigating the aftermath of the events of Chapter One, only to find themselves face to face with even greater challenges.