If you liked
Kanata kara
|
...then you might like
Koori no Mamono no Monogatari
|
Kanata Kara has a heterosexual relationship, but I found it gave a similar feel to Koori no Mamono no Mogatari. Both contain a pure, likable protagonist (who has a very close and interesting relationship with their counterpart) and the love interest who is not human and is extremely strong. Both manga's follow the journey of their respective protagonist couples as they journey through their world and build their own relationship. Also, each manga contains interesting side characters and a plot that does not leave you unsatisfied.
If you liked
Oresama Teacher
|
...then you might like
Takane to Hana
|
Both have an interesting storyline with a female protagonist who's passionate and humorous, and an older male love interest. Both mangas have great comedy and a not-so-typical relationship between the protagonist and the older male. Also, the art styles are very similar.