If you liked
Makai Ouji: Devils and Realist
|
...then you might like
Kamigami no Asobi
|
The character designs (hairstyles and hair colors) are extremely similar, the music also sounds very similar, and they are both of supernatural genre and set in a fancy school.
If you liked
Makai Ouji: Devils and Realist
|
...then you might like
Dance with Devils
|
Both are shoujo series that involve otherworldly characters such as Devils, vampires, and demons. Both take place mostly at school as well. Dance with Devils is a reverse harem and involves more romance, but you could argue that Makai Ouji has a little bit too.
If you liked
Starmyu
|
...then you might like
Makura no Danshi
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Natsuki Hanae sings the OP to Makura no Danshi (and also voices one of the characters) and is the main character for Star Myu where he also sings quite a bit. Both have mostly male characters and are directed mainly towards women or girls.
If you liked
Kobato.
|
...then you might like
Hanamaru Youchien
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Both main characters have jobs involving taking care of and playing with small children. They're both heartwarming comedies as well.
If you liked
Kono Naka ni Hitori, Imouto ga Iru!
|
...then you might like
Nisekoi
|
They're both traditional harem series where the MC is from wealthy and powerful family. Nisekoi is less ecchi than KNHII.
If you liked
Shounen Hollywood: Holly Stage for 49
|
...then you might like
Starmyu
|
While ShoHolly is a little more emotional than StarMyu, they both have cute guys with colorful hair that sing and dance. If you like the ups and downs of becoming an idol, you'll like ShoHolly.
If you liked
Barakamon
|
...then you might like
Gugure! Kokkuri-san
|
The main character in both have the same seiyuu and they have a similar feel to them. Both have a guy who is tidy and seemingly cold but caring on the inside towards others, especially small children. Supporting characters in both series are also pretty fantastic.
If you liked
Mikakunin de Shinkoukei
|
...then you might like
Soredemo Sekai wa Utsukushii
|
Both are overall very lighthearted and sweet, Soredemo has less fan service and is a little more serious but the main idea of both shows are pretty much the same. Both have a girl who has to marry against her will and ends up getting along with her partner-to-be.