Omamori Himari

Both are about a human that get surrounded by a harem of beautiful female monsters. Also the women are the ones that are fighting in both instead of the man. 

One main male characters surrounded by a lot of pretty girls. Main heroines in both series are not human, demon for High School DxD, youkai for Omamori Himari. Both series are harem-based with a lot of fan services to keep your eyes open. 

Both are ecchi/harem anime with high school male protagonists surrounded by supernatural (Omamori Himari)/alien (Asobi ni iku yo) females. Both anime also have some fights.  

Both have nearly completeley useless male protagonists, both are Harem, both have an animal-like person.... 

main character allergic to cats ah ah ahceww 

Both have a unexpected Plot Twist A great Mix of Ecchi, Drama, Romance and Action 

Ecchi, fights and beautiful female ayakashi. 

similarities: a ordinary school boy that needed to protect by a girl they have a good romance and action 

Similarities: Both have the same school, magic, supernatural and ecchi genres. Both muchachos (male lead) have childhood friends who literally takes care of them. Both have the same situation where the a mysterious magical girl approaches the muchacho (male lead). Both have the same members of the muchacho's harem whom would at first be the enemy before warming up to the muchacho. Dissimilarities: The chiquita (female lead) in one anime is a tsundere while the other chiquita (female lead) from another anime is a tease. The chiquita (female lead) in one anime treats the muchacho (male lead) like shit, while the other chiquita from another anime treats the muchacho (male lead) as her master. The childhood friend in one anime is sweet, caring and has big bouncing melons, while the childhood friend from another anime is also caring towards the muchacho but always displays jealously and has pancakes. The chiquita (female lead) in one anime relies on the muchacho for an extra boost of power when fighting or using her magic, while in the other anime the chiquita (female lead) may not rely on his master when she's protecting him, but she does depend on him to keep herself in check.  read more 

Both are rather light, funny shows about supernatural powers with an important romantic thread. Both have really nice graphic and are perfect to watch during summer break^ ^ 

Both of these shows themes are cat based or in relation to cats in some form or another. These animes have the same characteristics with a heavily fanservice ladened story line. There is no plot at all rather the objective is a mere precursor to douse the anime with more fanservice. 

Both are about a weak willed man who get surround by beautiful big chested women. 

both are ecchi and harem series. both about number of girls with magical power and ability and serve/help the main protagonist. 

Both are a series about Spirit Exorcist, have a harem and have a Niko girl as a main character. 

Spirit Girls who fight evil spirits, the main female characters have similar features, and they are both really powerful, and they are always protecting the main male, but the male doesnt want that, he wants to protect her 

Omamori Himari and Nurarihyon no Mago are both extremely similar. Why? Because they both are based around the theme of ayakashi. In Omamori Himari, the male protagonist Amakawa Yuuto is the one that inherited the Amakawa family's powers, but does not want to be a Demon Slayer. Similarly, in Nurarihyon no Mago, the male protagonist Nura Rikuo is the grandson of Nurarihyon, the supreme commander of the Nura clan (the dominant clan), but does not want to be the one leading the clan. They both eventually meet a lot of comrades, and accept their fate. Although Nurarihyon no Mago does not have elements of Ecchi or Romance, it is extremely similar, and both talk about the co-existence of both ayakashi and humans. Though Nurarihyon no Mago is generally more serious and has more action.  read more 

A very kind guy and a cute, nice but slightly stubborn girl join forces to deal with supernatural threats and problems. 

They both are comedy, harem. And they have kind of the same comedy, so if you liked Omamori Himari then you will like Kore wa Zombie Desu ka? of the Dead much more :) 

Both shows have plenty of ecchi, a healthy amount of comedy, and some satisfying action scenes. Omamori Himari has a little more action and To Love-Ru Darkness has more ecchi. However, ecchi enthusiasts will not be disappointed by either show.  

Ecchi comedies that leave some room for the serious stuff. Additionally, both shows have the same director and fantastic character designs. Oretachi has more slice of life and psychological elements while Omamori Himari has more action. 

Similarities: -Both have an animal character that looks like a human that protects the protagonist -Both have a character that wants to marry the protagonist Differences: -The story and plot are fundamentally different -Omamori Himari is more ecchi and fan-servicey than Mikakunin -Mikakunin is more slice of lifey  

a group of girls fighting each others and fell in love with a guy. the difference is in freezing is more on sci-fi while imamori himari is supernatural. but the atmosphere is the same. really worth watching.  

Both animes feature a male protagonist whose life is turned upside down after meeting a mysterious female co-protagonist.  

Both main protagonists have a Ayakashi companion who helps them fighting along as the girls start creating a harem. Both Ayakashi are in the MC family for a long time and seem to have some kind of affection for him. -Same Vibe. -Same Scenario. -Both very Lewd. -Similar characters and History. // Im actually surprised that noone has made this recommendation until now! //  

It's is pretty much the same thing. Girls surround a guy, except in Omamori's main guy doesn't have any powers. Ok I hate explaining things just watch it and you'll like it. Definitely  

In both anime, the main character is somehow allergic to the female protagonist, in Mayo's case a nosebleed when in contact with girls, in Omamori's case the main character is allergic to cats( Guess what creature the main female character can turn into) They are both Ecchi, comedy, romance, harem and rated R+ Basically, they are very similar, but they are AVERAGE in my opinion. Mayo chiki is more school oriented, while Omamori himari is more supernatural oriented. 

They are both about people with powers fighting against monsters and are both very enjoyable -some romance -female lead helps guide protagonist -protagonists are op -very funny at times They are both great to watch and have fun 

BOTH contains youkai , sword wielding characters , supernatural, romance and comedy. However omamori himari contains good ecchi  

well, the guy who is loved by all the girls in the anime, although "Omamori Himari" is a lot more echi based than "Hayate no Gotoku"  

Boy protects girl and girl protects boy... in master-slave relationship! 

Both are harems with the same male lead voice actor (Daisuke Hirakawa). Omamori Himari is more of a romantic comedy while School Days is more like a soap oprera. 

well , as the story progresses new characters come up . and well they all fallen for the protagonist and protagonist has a godlike skill xD  

Just like the Anime , Omamori Himari Have 5 Girls , and some thing with Magic . and Characters are pretty much Similar .  

Both have story and character similarities. Also the genres are very similar. 

Both of them have: Ayakashi, Guardian, Girl with Animal Ears, Mystic Powers  

Both has a group of girls protecting the weak male protagonist 

Main character is boy who look not special (but he actually is special) and this boy has a big harem ^^ 

Similarities: Both have the same, harem, school, magic, fantasy, romance and ecchi genre. Both have the same situation where the chiquita (female lead) moves in with the muchacho (male lead) both at home and at school. Both have the same situation where the muchachos (male lead)are sleeping with the chiquita (female lead).............literally, with no sex involved. Both muchachos (male lead) are nice guys and have magical abilities. Both muchachos (male lead) would find themselves being in danger with other members of their harem before they become part of their harem. Dissimilarities: In one anime the chiquita ( female lead) can sometime be jealous when she sees her master ( her male lead) being with someone else, nano. While the other anime the chiquita ( feale lead) doesn't display any jealousy towards the muchacho. The chiquita in one anime is a foreigner (from Italy) while the other is from Japan, nano. The muchacho in the other anime can actively use his powers, while in the other anime the mucahcho's powers are dormant. The antagonist in one anime are compose of deities, while in the other anime their antagonist are gods. The chiquita in one anime have bigger boobs than the chiquita in the other anime.  read more 

Similarities: Same school, action, romance, ecchi and harem genre. Same situation where the MC has no idea who he is. Same situation where most of the harem would be living in the MC's house. Dissimilarities: One has an extra, mecha, sci-fi genre, while the other has supernatural as its extra genre. 

like i said it in my other recommendation but this time the main character uses some of his power to fight but it doesnt show that he uses his powes because he rarely uses it  

the same contents; comedy, echi, martial arts, romance. and all the girls in the anime love the main male characters, and they would give their lives to save him. Also, he is somewhat skilled in martial arts. 

What makes it similar is that; both male characters have female warriors who go berserk when something happens to their masters,both male characters never expect to have them (female warriors) in the first place, both female warrior shared a kiss with their masters. And, as in any encchi thing, there are a couple of panty shots.  

"I'm so weak, but I want to protect you." to the "I'm such a nice guy" and all the overly exaggerated harem with a samurai girl. They're like the same thing! Though they switched the loli samurai with the big breasted "normal" Girl.