Natsu-iro Kiseki

Follows a group of friends that go through many misadventures and many troubles that more often than not leads to funny results. Over the course of the series their friendship is tested and eventually grows stronger than it was at the beginning.  

Both series contain the slice of life theme with characters doing things with their friends on a daily basis. Both series contain a cast of characters with interesting personalities. Both series has comedy, drama, and similar styles.  

Just the whole thought of this being their last summer brings them together. Many of the characters also have similar personalities. The two shows do have their minor differences but in the long run it is both about people who want to enjoy their summer.  

Both anime have a very nice and unique atmosphere that makes you relax. a heartwarming feeling that comes with the friendship between the main characters. 

Life is not always simple especially during years of puberty involving the characters in both of these two series. As such, there is no doubt in my eyes that both of these series has some similarities: *Both series has that slice of life feeling revolving cute girls doing cute things *Both series has a dominant female cast with similar artwork *Both series has realism although Natsuiro Kiseki seems to fall out of that phase later on *Both series contains comedy and drama *Both series presents various scenarios of every day life and the troubles we may face *Both series has friendship as one of its major themes Overall, these two series are for viewers interested in a relaxing anime that lacks the typical shōnen action, mindfucks, or ecchi but rather a slice of life style theme.  read more 

Both have the same slice of life feeling to them. Hanasaku Iroha has more romance as of now and Natsuiro Kiseki has more friendship. I love both of them and If you like one , you will like the other! 

Very similar genre and very similar art. Both focuses on four girls. 

Both series features a group of friends with an extra mixture of the supernatural. Both series contains a lot of drama, comedy, and details friendship at its finest form. Both series also has a slice of life stylish feeling that moves at a relative pace that brings out entertainment for the anime fans.  

When watching Natsu-iro Kiseki it really reminded me of Kokoro Connect cuz they both have -random supernatural stuff happening to them -high school students -they can’t really predict what’s going to happen next -the supernatural experience changed them a bit(especially Kokoro Connect) -eventually things come to an end 

To be honest, it's been a month since I finished watching Railgun and I can't help but notice the similarity between him and Natsuiro Kiseki, the environment and the characters' daily lives are very similar. Literally natsuir kiseki and almost a 100% slice of life version of railgun, not to mention Yuka who has the same personality as Saten, it could be said that she is the same character. 

Same lighthearted slice-of-life feel, cutesy moe-esque feel; both series gives two same idol-themes but directs to different stories of friendship and chasing dreams of becoming idols in their own terms. Plus, the characters are never boring, you'll see from both series that each of their characters stands out. Everyone is a main character and no one goes to be just an extra or support-character. 

-Supernatural things and unexpected events happens to their summer -School life/Slice of life anime/drama 

involved four girls. those girls are bestfriend. the girls have the same dream. in natsuiro they wanted to be idols. in one off they wanted to hold a concert.. ^_^ 

Both Slice of Life show us the adventures of Four Girls during the Summer and show you the value of friendship, as Slice of Life have much similarity in the Argument. Natsu-Iro Kiseki - Non Non Biyori Yuka Hanaki - Komari Koshigaya Saki Mizukoshi - Hotaru Ichijou Rinko Tamaki - Renge Miyauchi Natsumi Aizawa - Natsumi Koshigaya Characters with very similar behaviors