If you're looking for anime similar to Saiyuki, you might like these titles. All recommendations are made by Anime-Planet users like you!
Drawn to the mystique of the unknown, Hunters travel the world in search of terrifying creatures, incredible riches, and unexplored lands. Gon Freecss is a naive-yet-determined young boy who aspires to join the ranks of these individuals, in order to find his missing father Ging - a master of the profession himself. To reach his goal, he partakes in the formidable Hunter Exam, a series of tests that push the participants to their physical and mental limits, with a Hunter License as the prize. During the exam Gon befriends vengeful Kurapika, doctor-to-be Leorio, and skilled assassin Killua, who have entered for their own reasons. But with the sinister Hisoka standing in their way, will Gon and his friends be able to succeed in obtaining their reward, or even escaping with their lives?
If you liked Saiyuki or if you liked HunterxHunter, you would like the other. At first this would not be an obvious choice for one another. They both follow a group of guys on there jorney. Both of them have 50+ episodes. There are also many fight scenes with even some humor packed into both. So if you liked one, you should try the other, it is worth the time watching!
Tsuzuki Asato is a shinigami: a guardian of death. Acting as an investigator in Juuouchou, the bureau in charge of ensuring that each soul passes through the cycle of life naturally, his job often involves dealing with those who would disrupt this cycle. His life after death is about to change, however, as he is assigned a new partner, Kurosaki Hisoka, for a case in Nagasaki - a case seeming to involve some sort of vampire. But the two shinigami soon find that something deeper lies behind this blood-sucking menace...
Descendants of Darkness and Saiyuki both have decent detective stories. Both are fairly predictable, but decent.
For those who enjoy boy-love Saiyuki I think has the better relationship, because the characters are less, well Descendants of Darkness gives the main characters a somewhat flat personality, and it can be a bit of a drawback at times. However, on the same token Descendants of Darkness also has a much more satisfying amount of fan-service (if, as seems to always happen, it does detract from the story a bit, which is a shame).
Saiyuki -is- significantly longer at 50 eps vs. only 13 though, which could be an issue for you if you don't like or you prefer longer or shorter stories as the case may be.
Ultimately though, these two anime are roughly on par with one-another for quality and very similar in content without being too similar.
Another thing to consider is that while Descendants of Darkness is an absolutely beautiful gothic and macabre world, Saiyuki is very much of a kind of. .. illustrious beauty. Alabaster pillars, colorful outfits and so forth permeate the majority of the show. Though by pure quantity and not percentage all of its short moments of the macabre may add up to just as much as is had by Descendants of Darkness heh heh.
Rokuro Okajima is a small-time salaryman who is carrying documents for his company, when the ship he's traveling on is attacked by pirates. Kidnapped, he discovers to his dismay that his employers' main concern is to ensure the documents don't get into the wrong hands, even if it means sending the carrier to the bottom of the sea. Now, with his former life ruined and his kidnappers seeming comparatively friendly, "Rock" decides to join their merry band of mercenaries, and sets out with a new career to the shadier corners of the South China Sea.
Despite the obvious differences in setting and quality (Black Lagoon's animation is far better), the general feeling you get from Saiyuki and Black Lagoon is the same.
Apart from the great action in both series, Saiyuki and Black Lagoon also share a secret emphasis on character development and offhand philosophy. Both shows follow the adventures of a team of misfit anti-heroes whose group relationships become more and more intimately detailed as the stories progress. The shows also share a similar worldview--characters will semi-routinely discuss a somewhat cynical every-man-for-himself, seize-the-day sort of philosophy at more dramatic moments. And yet neither show takes itself too seriously. There’s character-based humor enough to spare in both.
(Oddly enough, both Saiyuki and Black Lagoon also require a sometimes amusing willingness to suspend disbelief. If an ancient monk can ride around in a jeep and use a credit card then a traditional maid can kill hoards of men with an umbrella bazooka. It’s simple logic.)
Once, male angels known as the saint beasts protected both heaven and earth. Two rebelled and were cast down; now only four remain to fight heaven's new enemy. With the goddess on their side, and the powers of the dragon's sword, the turtle's shield, the phoenix's dart and the tiger's armor, the saint beasts appear invincible. But the goddess asks much more of them than vanquishing their enemies. Not only must they protect humans and guardian angels, rein in wandering angels and cook tasty meals, but in the final battle, they must also face those whom they hold most dear.
If you enjoy demons, short and for ever hungry protagonist, mistery and some funny jokes, you for sure will enjoy both of this titles.
Hakkenden is newer, so the animation looks prettier. But you can't deny Saiyuki has its charming if you fall for a lot of bishounens looking for their destiny.