Two guys.. and they fell in love with their mutual friend and can't share him and are jealous of him.. but in the end they will come to a common conclusion and decide to meet with him together Alex is a caring guy, always for caution, loves to give expensive gifts, is very rich, terribly jealous. Black hair and green eyes, in a classic suit His brother Kai is an extreme, caring, terribly jealous.Red hair, green eyes and in a cheeky outfit