These are not side stories pretending to matter. They are pure character demolition, four guys you already love getting systematically disassembled for comedy. The show stops caring about narrative urgency the second it starts. What remains is Genjyo Sanzo chain-smoking and threatening to shoot his party over trivial nonsense, Goku being catastrophically stupid in the exact same way every time, Hakkai's polite surface cracking into exhausted rage, Gojyo just wanting a quiet drink. The comedy lands because it comes from understanding these characters deeply enough to know exactly how they would embarrass themselves when no one is watching. Each episode is permission to laugh at them without guilt. If you want Saiyuki's story to advance, this will irritate you. If you want to spend time with these four disaster men when they are not saving the world, this is essential.
Saiyuki RELOAD Urasai is a 2003 special made up of 24 comedy shorts. Each one stars the main characters from Saiyuki and sets them in lighthearted skits, not dramatic storylines. It is aimed at viewers who already know the franchise and want some light comic time with its familiar cast.