First cousin marriage is allowed in Japan so it wasn’t really weird for me. Regarding the age gap, the age of consent in japan is 13 years old. So... Yeah it was consensual and legal. (*´▽`*)
Yeah. Was shooked to learn it years ago. I forgot the anime but this girl love her cousin and it was so weird to me (coz she was planning like marriage) i had to google xD
I need a side story for Nao!!! Lemme date her