Roy Fang and Jim Yu,born in two different village but with unique abilities.Unlike all children born with elemental or normal eye,these two were born with a strange Red eye on the left.At age 10 , they were able to master and use the eye very well. The eye enabled them to take control over girls and make their minds weak to agree on the boy's decisions.
However, the yob-in-gan took too much of chakra so they mastered a technique to allow great flow of chakra to the eye and stop damage.
Gradually they grew up and had to go to the High school for all clan.