Responses
well thinking about it realistically, it's wrong for a child to develop romantic feelings and have a understanding of marriage and the means to fall in love, BUT since it is not the real world and is a shoujo manga, anything is possible, remember this is just a book for entertainment purposes, when reading a manga you got to learn that this and reality are different. Try to keep remembering this world as the "Free world".
So no one else is bothered by the fact that this grown ass man knew her from she was a child, and is now apparently marrying her ? no one ? are you guys that starved for shoujo manga's ? gross