Talk:Duusu/@comment-28056300-20160627195211/@comment-28864447-20160627214634

http://ladybugsofmiracles.tumblr.com/post/146555593153/miraculous-hearts-ok-but-guys-i-think-i-made-a

See this link ^

But it's still only a theory. We will probably know more in 2017 :D.