The "extra quality" often refers to, the, care taken with lighting, shading, and anatomical accuracy, which, in, high-quality, sets, are, particularly, refined.
High-quality standalone renders of main companions and antagonists. Maximizing relationship or affinity points.
Futaisekai: A Tale of Unintended Fate is an interactive fiction and role-playing game featuring mature themes, intricate world-building, and a branching storyline.