Kagome was just a normal girl, until one day she fell into a well that brought her to feudal-era Japan. After encountering hordes of demons and discovering that she's the reincarnation of a priestess, Kagome must now journey to protect a sacred jewel from evil with the help of a half-demon named Inuyasha. Along the way they make many enemies and friends, and travel between the modern and feudal eras.
Both series take place in the feudal era and involve a girl from the present traveling back to that land. In Fushigi Yugi it is in a more unconventional sense (as Miaka is sucked into a magical book to become a priestess of the Konan land), while in InuYasha, Kagome travels through a well as a reincarnated priestess. Both series revolve around the supernatural and involve a group of highly entertaining characters taking on the demons of their respective worlds.
A teen girl is transported to a new world and gains supernatural powers there. The young men in the new world fancy her school uniform with its short skirt, and both Kagome and Miaka find themselves torn between their responsibilities in school and the tasks that only they can perform in the fantasy world. A fan of one should definitely love the other too.
Although they're intended for somewhat different audiences (FY is shoujo while InuYasha is shounen), both feature a female who gets sucked into a historical world where magic and adventures await her. Both involve the main character making choices between staying in the historical world vs. returning home. The overall feel is similar in both series.
Amane has a unique power: if she knows someone's true name, she can control his or her spirit. Because of her unusual stoic attitude and suboptimal social skills, she is seen as creepy by her peers and has a hard time making friends. The only "person" she really talks to is actually her guardian in disguise: Hyoue, a dog-demon, who feeds off of humans' life energy. Amane "feeds" him by kissing him in public, which doesn't with help her public image. Amane and Hyoue must keep their powers a secret while fighting the evil spirits they encounter.
Both of these titles show a unique relationship between a human and a demon. The monsters and evil spirits they encounter can be scary, but both manga leave room for humor and romance.
If you like humans that look like dogs Inuyasha and Her Majesty’s Dog are the series for you. Both feature the male lead being a dog demon who is in a relationship with a female human character. As they encounter monsters they have to battle them while building their own relationship together.
Rin-ne and Inuyahsa are so similar that they could be sequels, the only significant difference is that Rin-ne takes place in modern times while Inuyasha takes place in ancient times. Both stories involve a self-centered, demonlike boy with special powers, who (rather reluctantly) fights against supernatural beings who disturb the piece of the mortal world. Each is accompanied by a level-headed human girl & a somehwat annoying little boy-demon.
In both manga the story and characters are very similar, which is only natural, since they're from the same mangaka. While Inuyasha takes place mostly in the feudal era with the characters exterminating evil youkai and hunting down the main villain, Rinne takes place in the present with the main characters dealing with cases that have to do with the supernatural.
Yuusuke is a street-fighting, class-skipping juvenile delinquent. Killed in an unexpected act of kindness, he thwarts the spirit-world bureaucracy and ends up with a second chance at life... as infant prince of death Koenma's Spirit Detective! Simultaneously cheered on and kept in line by Keiko Yukimura, his childhood friend, he is joined by a spiritually aware human, two demons on parole, and guided by a much too lively ferry girl of the dead. Together they plow through demons, tournaments, hijinks, intense "martial arts" training, cross-dressers, dungeons, conspiracies and bad puns alike. At the end of the day, what's it all for? Kicking butt and saving the world, of course!
Great battles! Tons of comedy and laughs! Really get story plots! A little romance! And some of the best characters!! :) You'll never get bored!!
Both YYH and Inuyasha deal with high school students and center around a strange demonic aura. There's mysticism involved, and each group fights the demons and tries to protect their homeland. Both of the main characters are males with very surly personalities that match their fighting skills. They each meet a group of friends along the way that strive to help them fight the demons and protect the ones that they love.
With both InuYasha and Amatsuki a person (Kagome in InuYasha and Amatsuki in Amatsuki) are pulled into a strange world in the feudal days. Both encounter monsters and demons along the way in which they have to find people to help them defeat the demons and go back to their own world. Each series has the same type of feeling to them.