Hikaru Gero

Hikaru Gero is the main protagonist of Marriage Toxin series. Hikaru is the current heir to the Poison clan who is part of the Gero Family, one of the top five families of specialists. Gero is a tall man with short blue hair and red eyes. Under his right eye is a scar that stretches from the edge of his lower eyelid, to just bellow the bottom. He usually wears sweatshirts and glasses. Sometimes he uses a gas mask to avoid the effect of the poison he uses.

Gero is a specialist known as the "Poison User" by injecting himself with poison, he gains enhanced reflexes and strength, a unique skill that sets him apart. Despite his past as a trained assassin and a murderer, Gero harbors a kind heart and strives to help others whenever he can. In his childhood...