 If you liked
Akazukin no Ookami Deshi
|
 ...then you might like
Whale Star: The Gyeongseong Mermaid
|
Both girls in these manga can't converse by speaking. Someone comes by and they go to a safe place together because it would be difficult to live alone and they had no place to stay anymore. They patiently live together and the girls learn information they require to survive/be able to stay at that place.
*Art is good.
<> Gorae Byul: Dramatic romance, tearjerker, Akazukin no Ookami Deshi: Adventure