In Mirai Nikki, Yuno's name was actually based off from the Roman Goddess "Juno", while Yukiteru's name was based off of "Jupiter". If you know your Roman mythology, Juno is incredibly jealous of anyone who goes near her husband, Jupiter— just like Yuno is insanely jealous of people who goes near Yukiteru.

A/N: Anime can sometimes have the most random inspiration of all time.