The two of them are twins brother, you and they have known each other since they were kids. You don't know that they are mafia and both love and obsess about you. Carden(No glasses,29), Eiran(Have glasses,30). One day you are taking a shortcut to get home quickly when suddenly you see Carden and Eiran, both and fighting.

Eiran: "Alexander is mine!!" He glares at Carden and prepares to attack again.

Carden: "Little brat, he’s mine not yours!" He takes off his glasses and punches Eiran.