Daitoshokan no Hitsujikai

-Both the protagonist can sort of see the future. In Kanojo, the protagonist has the ability to see flags and what they represent (ie. death, love, etc.) and can choose to act. In Daitoshokan, it is more of a premonition. -Both involve a secret organization responsible for the protagonist's power. -Both have lots of females surrounding a male protagonist. Daitoshokan is a much more mature anime than Kanojo however.  

Main Similarities: •Plot is somewhat similar... kinda (Involves the main character joining a group/club. At first, he doesn't like the idea but over time, he happens to enjoy it causing him to stay in the club. Plus most of the members are female, causing a harem-feel since many of the females fall for the male lead). •Mainly takes place in school. •Similar genres (harem, school, etc.). •Similar feel (happy, upbeat, some comedy, etc.). •Length of the shows are about the same (each has 1 season - 12 episodes about 24 minutes long with some OVAs). I find these shows underrated, but that's my opinion.  

-Both anime tell about a life of high school boy surrounded by girls. -Both anime have same genre, especially harem, romance, and school. -In my opinion, the art from both anime are not too different. -Both anime characters's personality in not too different. -Both anime lead female character actually same (long orange hair, personality almost same, and so on). 

Both of these anime have sort of a magical, fantasy type of element that mixes in the romance/super power genre smoothly. Well recommended if you’re into that type of thing. 

Both series contain a red-haired girl that encourages the male protagonist to look beyond himself for something more that he hopes she can help him discover. While this one happens from the male protagonist's point of view, Itazura na Kiss happens from the female protagonist's point of view. Itazura na Kiss does tend to contain a bit more drama, but it can move very quickly and capture you the same way this show does. 

Both anime have same story about book Both main male character are smart  

There is not a whole lot that is similar between the two animes but there is a bit. In daitoshokan, the main chracter is lighthearted when compared to the main chracter of the fruit of grisaia but the main premise is similar how at one point or another the main mc helps each girl with something they have or had trouble with in their lives also like every anime of this genre all the girls are in love with the main chracter 

The stories are quite different, but both have some kind of precognition (premonition or remote viewing). 

the main character of these anime: self sacrifice, solo type player in real world ( always alone ),know how to survive in a world that he dont have any comrade or friends, if you like all of those then you will like both of them.  

The main character in both series are candidates for a secret group/organization. They are interested in their ability and will do anything to make them join them. One series is action packed while the other romance Visual novel adaptation.  

Whole your life you've been searching for this single thing. It has become your obsession to find the secret of the Library/Sky. The MC of both Sola and Hitsujikai have been subjected to a certain faith since birth and we start the shows at the point where their stories start to unfold. There are samplings of Drama, but Daitoshokan no Hitsujikai leeches from its Harem specificaly. These shows mix their everyday life student settings with a magical and fantasy undertone. Daitoshokan sells you a comedic school setting, while Sola will hand you some action to keep you watching. If you have any interests in a more pro-active MC, a compelling story and slight closure of romantic storylines, you should try either of these for a short drama experience. read more 

It deals with a couple of people in a club, with one socially withdrawn, but sharply observant guy and an introverted girl who wishes to change herself. The girl has a good impact on the social life of the guy. Hyouka is classier though, and the animations are gorgeous.  

similarities: some of the girls are into the main character both of them have some small clubroom and same type of member good art that you can enjoy dissimilarities: one of them is dealing in past and one of them is dealing in future.