The way I see it, Chrona/Krona/Crona is a girl in the manga and a boy in the anime. Being a person who watched the anime first, seeing Chrona being a girl is weird for me, but I still love da picture. hermaphroditic unclearness for the win! FTW!!!
I just think he's a boy mostly because of the Anime, not the manga I don't like any manga. WE read left to right in this country. Wow I just made myself sound racist since you live in South Korea. I'm not racist.