 If you liked
Koko ni Iru yo!
|
 ...then you might like
Nanairo Sekai
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Very similar feel when reading. Girl has trouble expressing her true feelings but meets a cool guy who helps her out. There are a lot of frustrating situations that could be avoided if the girl would just say what she thought (which you will either love or hate). Both also have a very "cute" art style and involve middle schoolers.