Senryuu Shoujo

Both heroine characters have troubles regarding communication. Senryuu's main heroine have problems towards dialoguing with her friends and, in effect of a counter measure, she uses a japanese short poem technique- the "Senryuu". Senryuu shoujo plot works around these unusual techniques of literature (extremely specific by the way) in order to develop and maintain her relationships. For that, the main character helps the girl a lot. Komi-san, similarly, has communication difficulties as well but, in a certain sense, it didn't manifest a decent counter measure for aid her in this despite, of course, the limited interactions with the main character in terms of, objectively, showing her thoughts about the sorrounding and her interests. She can't really use her voice to express herself. For that, the protagonist has an eager desire to help her. As you can see, "communication" is the main keyword here- the differences rely in the aspects that they will be able to find to achieve a pleasant interaction in the label of social relations; one has already find a way to express herself and the other is figuring out and, utmost, trying to finally be able to speak without anxiety and overflowing feelings corrupting her intentions. read more 

Both focus on a girl who does not communicate verbally. 

Both stories focus on the relationship between MC and FMC. Both FMCs are shy and have problems with communicating with other people. Wholesome and funny shows. 

Both shows are set in a high school setting and focus on relationships between the main character and a friend of the main character. Komi and Nanako are both shy and have problems with communicating with other people. Each show has their own unique and hilarious comedy. 

Concept was a bit similar but both girl mc have different struggle. SenryuuG female mc is more open with her crush unlike k0mi-san. Love them both.  

Shorter-than-average, cute, and wholesome animes with romantic elements. However, "Tsurezure Children" follows a much larger cast of characters. 

Both series have a couple of main characters, being the girl a shy girl who struggles to comunicate and the boy being looked by the society as an aggresive person (one because of his actions, the other because of his looks). While Senryuu Shoujo focuses more on comedy and beautiful moments, Koe no Katachi focuses on the pain the characters felt and how they grew as individuals. Both recommendable to watch. 

Both shows involve an out of the ordinary cast who are considered weird from an outside perspective. They both follow their daily lives and interactions  

they are about comedy school and they have short durations