Nokiya's manga / #Childhood Friend(1)

This manga is about two childhood friends growing up with eachother while having a crush on one another the thing is Is that the ml is content and quiet about how he feels and that the fl shows her feelings loudly and proudly So to sum up the story the fl has mermaid ancestors that lit a curse on their descendants where they have to be told “I love you” by the one they’re in love with and that kind of difficult because the ml doesn’t like to show his feeling openly like the fl does to him