The title of the book is the dream of the cuckoos
On the contrary, it's very symbolic. The cuckoo is a bird that steals other birds nests, and lays an egg that will take the place of the other original eggs that were in the nest. So you can see that Seno could be the "cuckoo" of this story, wanting to take Hakushima place in Natsuka's "nest" (aka heart).
How did you even think that the ending was beautiful if that symbolism flew right over your head?
Pffft hahaha well I guess people don’t call me a tube light for nothing lol
And the ending was beautiful, but when the cuckoo chirped at the end I DIED LOL WHYD THEY HAVE TO PUT THAT CUCKOO IN THERE AND WHO CARES IF IT CHIRPS LOL HAHAHAHA